AVENUE TOP MINE - Revision history

Randylyon at 21:11, 5 September 2019

2019-09-05T21:11:40Z

← Older revision		Revision as of 21:11, 5 September 2019
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	With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (6)		With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (6)

	When financial troubles caused the Avenue Top Mine to close, the mill reverted to Mr. Ott who had sold the mine to the Aguinico Mining Company. In 1924 J. J. Ott sold the Avenue Top ore concentrating mill near the [[DUBUQUE BOAT AND BOILER WORKS]]. The mill had been constructed by the [[AVENUE TOP COMPANY]] in 1919. Buying the mill were [[ELLWANGER, John\|John ELLWANGER]], [[MEUSER, William H.\|William H. MEUSER]], and P. F. Ryder who were all involved in the operation of the [[GOOSE HORN MINE]]. The mill was purchased ~~for mill~~ for processing their ore. (7)		When financial troubles caused the Avenue Top Mine to close, the mill reverted to Mr. Ott who had sold the mine to the Aguinico Mining Company. In 1924 J. J. Ott sold the Avenue Top ore concentrating mill near the [[DUBUQUE BOAT AND BOILER WORKS]]. The mill had been constructed by the [[AVENUE TOP MINING COMPANY]] in 1919. Buying the mill were [[ELLWANGER, John Peter\|John Peter ELLWANGER]], [[MEUSER, William H.\|William H. MEUSER]], and P. F. Ryder who were all involved in the operation of the [[GOOSE HORN MINE]]. The mill was purchased for processing their ore. (7)

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Randylyon at 21:10, 5 September 2019

2019-09-05T21:10:15Z

← Older revision		Revision as of 21:10, 5 September 2019
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	With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (6)		With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (6)

			When financial troubles caused the Avenue Top Mine to close, the mill reverted to Mr. Ott who had sold the mine to the Aguinico Mining Company. In 1924 J. J. Ott sold the Avenue Top ore concentrating mill near the [[DUBUQUE BOAT AND BOILER WORKS]]. The mill had been constructed by the [[AVENUE TOP COMPANY]] in 1919. Buying the mill were [[ELLWANGER, John\|John ELLWANGER]], [[MEUSER, William H.\|William H. MEUSER]], and P. F. Ryder who were all involved in the operation of the [[GOOSE HORN MINE]]. The mill was purchased for mill for processing their ore. (7)

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	6. Ludvigson, Greg A. and Dockal, James A. "Lead and Zinc Mining in the Dubuque Area," Online: http://www.igsb.uiowa.edu/browse/leadzinc/leadzinc.htm		6. Ludvigson, Greg A. and Dockal, James A. "Lead and Zinc Mining in the Dubuque Area," Online: http://www.igsb.uiowa.edu/browse/leadzinc/leadzinc.htm

			7. "Avenue Top Mill Changes Hands," ''Telegraph-Herald'', June 10, 1913, p. 20



	[[Category: Mines]]		[[Category: Mines]]

Randylyon at 18:22, 26 March 2019

2019-03-26T18:22:56Z

← Older revision		Revision as of 18:22, 26 March 2019
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	AVENUE TOP MINE. Operating at peak production in 1906-1907, the Avenue Top Mine was located on the site later occupied by Steve's Plumbing at 1094 University Avenue. The site had been a [[LEAD]] mine until 1880 operated by the [[AVENUE TOP MINING COMPANY]]. (1) The Avenue Top Mine yielded about $150,000 in lead ore, then $25 in [[DRYBONE]], and later over $100,000 in [[BLACK JACK]]. (2)		AVENUE TOP MINE. Operating at peak production in 1906-1907, the Avenue Top Mine was located on the site later occupied by Steve's Plumbing at 1094 University Avenue. The site had been a [[LEAD]] mine until 1880 operated by the [[AVENUE TOP MINING COMPANY]]. (1) The Avenue Top Mine yielded about $150,000 in lead ore, then $25 in [[DRYBONE]], and later over $100,000 in [[BLACK JACK]]. (2) So active was the Avenue Top in 1906 that a shortage of experienced and apprentice miners was reported in the city. (3)

	The Avenue Top Mine was first developed in 1875 by the McNulty, Burt and Company with the discovery of a large body of [[GALENA]] in the uppermost level or first opening. The working were later expanded to include three levels. The deepest level yielded sphalerite (ZnS) known locally as [[BLACK JACK]]. In the 1890's the eastern portion of the workings were operated by the Avenue Top Mining Company and the western portion were operated by the Bush Mining Company. The main shaft was located at the present intersection of University and Booth Streets. The exact location is under the electric substation. The shaft was 200 feet to the third opening, 120 feet to the second and 60 feet to the first. (2)		The Avenue Top Mine was first developed in 1875 by the McNulty, Burt and Company with the discovery of a large body of [[GALENA]] in the uppermost level or first opening. The working were later expanded to include three levels. The deepest level yielded sphalerite (ZnS) known locally as [[BLACK JACK]]. In the 1890's the eastern portion of the workings were operated by the Avenue Top Mining Company and the western portion were operated by the Bush Mining Company. The main shaft was located at the present intersection of University and Booth Streets. The exact location is under the electric substation. The shaft was 200 feet to the third opening, 120 feet to the second and 60 feet to the first. (3)

	In 1910 the mine was purchased by the Acquinico Mining and Development Company which owned [[GOLD]], silver, copper, [[LEAD]] and [[ZINC]] mines throughout the United States, Canada, and Mexico. In early January, the company had workers removing all the old equipment in preparation for new mining equipment with three times the capacity. (3) Anticipation was high that the mine would return Dubuque to a center of mining activity. The previous owners had had to close down their operations due to financial problems just as a large pocket of ore had been discovered. (4)		In 1910 the mine was purchased by the Acquinico Mining and Development Company which owned [[GOLD]], silver, copper, [[LEAD]] and [[ZINC]] mines throughout the United States, Canada, and Mexico. In early January, the company had workers removing all the old equipment in preparation for new mining equipment with three times the capacity. (4) Anticipation was high that the mine would return Dubuque to a center of mining activity. The previous owners had had to close down their operations due to financial problems just as a large pocket of ore had been discovered. (5)

	With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (5)		With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (6)

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	2. Oldt, Franklin T. '''History of Dubuque County, Iowa'''. Chicago: Goodspeed Historical Association, 1911, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt		2. Oldt, Franklin T. '''History of Dubuque County, Iowa'''. Chicago: Goodspeed Historical Association, 1911, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt

	3. "~~New Owners Open Avenue Top Mine~~," ''Telegraph-Herald'', ~~January 2~~, ~~1910~~, p. 9		3. "Mining Help is Short in City," ''Dubuque Telegraph-Herald'', September 17, 1906, p. 2

	4. "New Owners Open Avenue Top Mine," Telegraph Herald, January 2, 1910, p. 9		4. "New Owners Open Avenue Top Mine," ''Telegraph-Herald'', January 2, 1910, p. 9

	5. Ludvigson, Greg A. and Dockal, James A. "Lead and Zinc Mining in the Dubuque Area," Online: http://www.igsb.uiowa.edu/browse/leadzinc/leadzinc.htm		5. "New Owners Open Avenue Top Mine," Telegraph Herald, January 2, 1910, p. 9

			6. Ludvigson, Greg A. and Dockal, James A. "Lead and Zinc Mining in the Dubuque Area," Online: http://www.igsb.uiowa.edu/browse/leadzinc/leadzinc.htm



	[[Category: Mines]]		[[Category: Mines]]

Randylyon at 20:26, 5 August 2016

2016-08-05T20:26:33Z

← Older revision		Revision as of 20:26, 5 August 2016
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	The Avenue Top Mine was first developed in 1875 by the McNulty, Burt and Company with the discovery of a large body of [[GALENA]] in the uppermost level or first opening. The working were later expanded to include three levels. The deepest level yielded sphalerite (ZnS) known locally as [[BLACK JACK]]. In the 1890's the eastern portion of the workings were operated by the Avenue Top Mining Company and the western portion were operated by the Bush Mining Company. The main shaft was located at the present intersection of University and Booth Streets. The exact location is under the electric substation. The shaft was 200 feet to the third opening, 120 feet to the second and 60 feet to the first. (2)		The Avenue Top Mine was first developed in 1875 by the McNulty, Burt and Company with the discovery of a large body of [[GALENA]] in the uppermost level or first opening. The working were later expanded to include three levels. The deepest level yielded sphalerite (ZnS) known locally as [[BLACK JACK]]. In the 1890's the eastern portion of the workings were operated by the Avenue Top Mining Company and the western portion were operated by the Bush Mining Company. The main shaft was located at the present intersection of University and Booth Streets. The exact location is under the electric substation. The shaft was 200 feet to the third opening, 120 feet to the second and 60 feet to the first. (2)

	In 1910 the mine was purchased by the Acquinico Mining and Development Company which owned [[GOLD]], silver, copper, [[LEAD]] and [[ZINC]] mines throughout the United States, Canada, and Mexico. In early January, the company had workers removing all the old equipment in preparation for new mining equipment with three times the capacity. Anticipation was high that the mine would return Dubuque to a center of mining activity. The previous owners had had to close down their operations due to financial problems just as a large pocket of ore had been discovered. (3)		In 1910 the mine was purchased by the Acquinico Mining and Development Company which owned [[GOLD]], silver, copper, [[LEAD]] and [[ZINC]] mines throughout the United States, Canada, and Mexico. In early January, the company had workers removing all the old equipment in preparation for new mining equipment with three times the capacity. (3) Anticipation was high that the mine would return Dubuque to a center of mining activity. The previous owners had had to close down their operations due to financial problems just as a large pocket of ore had been discovered. (4)

	With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (4)		With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (5)

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	2. Oldt, Franklin T. '''History of Dubuque County, Iowa'''. Chicago: Goodspeed Historical Association, 1911, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt		2. Oldt, Franklin T. '''History of Dubuque County, Iowa'''. Chicago: Goodspeed Historical Association, 1911, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt

	3. ~~Tigges~~		3. "New Owners Open Avenue Top Mine," ''Telegraph-Herald'', January 2, 1910, p. 9

	4. "New Owners Open Avenue Top Mine," Telegraph Herald, January 2, 1910, p. 9		4. "New Owners Open Avenue Top Mine," Telegraph Herald, January 2, 1910, p. 9

Randylyon at 02:39, 6 May 2014

2014-05-06T02:39:25Z

← Older revision		Revision as of 02:39, 6 May 2014
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	1. Tigges, John T. and Shaffer, James L. '''Then & Now--Dubuque, Iowa''', Arcadia Publishing Company, p. 55. Online: http://books.google.com/books?id=qoRAnbmv7fUC&pg=PA55&lpg=PA55&dq=Avenue+Top+MIne+%28dubuque%29&source=bl&ots=8neJBq8ev3&sig=7nQLO30DttWIgZj4aXPird1vQQo&hl=en&sa=X&ei=NY5UU-ikGczgsASktYDABA&ved=0CC4Q6AEwAjgK#v=onepage&q=Avenue%20Top%20MIne%20%28dubuque%29&f=false		1. Tigges, John T. and Shaffer, James L. '''Then & Now--Dubuque, Iowa''', Arcadia Publishing Company, p. 55. Online: http://books.google.com/books?id=qoRAnbmv7fUC&pg=PA55&lpg=PA55&dq=Avenue+Top+MIne+%28dubuque%29&source=bl&ots=8neJBq8ev3&sig=7nQLO30DttWIgZj4aXPird1vQQo&hl=en&sa=X&ei=NY5UU-ikGczgsASktYDABA&ved=0CC4Q6AEwAjgK#v=onepage&q=Avenue%20Top%20MIne%20%28dubuque%29&f=false

	2. Oldt, Franklin T. '''History of Dubuque County, Iowa'''. Chicago: ~~Western~~ Historical Association, ~~1880~~, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt		2. Oldt, Franklin T. '''History of Dubuque County, Iowa'''. Chicago: Goodspeed Historical Association, 1911, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt

	3. Tigges		3. Tigges

Randylyon at 03:50, 21 April 2014

2014-04-21T03:50:37Z

← Older revision		Revision as of 03:50, 21 April 2014
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	1. Tigges, John T. and Shaffer, James L. '''Then & Now--Dubuque, Iowa''', Arcadia Publishing Company, p. 55. Online: http://books.google.com/books?id=qoRAnbmv7fUC&pg=PA55&lpg=PA55&dq=Avenue+Top+MIne+%28dubuque%29&source=bl&ots=8neJBq8ev3&sig=7nQLO30DttWIgZj4aXPird1vQQo&hl=en&sa=X&ei=NY5UU-ikGczgsASktYDABA&ved=0CC4Q6AEwAjgK#v=onepage&q=Avenue%20Top%20MIne%20%28dubuque%29&f=false		1. Tigges, John T. and Shaffer, James L. '''Then & Now--Dubuque, Iowa''', Arcadia Publishing Company, p. 55. Online: http://books.google.com/books?id=qoRAnbmv7fUC&pg=PA55&lpg=PA55&dq=Avenue+Top+MIne+%28dubuque%29&source=bl&ots=8neJBq8ev3&sig=7nQLO30DttWIgZj4aXPird1vQQo&hl=en&sa=X&ei=NY5UU-ikGczgsASktYDABA&ved=0CC4Q6AEwAjgK#v=onepage&q=Avenue%20Top%20MIne%20%28dubuque%29&f=false

	2. Oldt, Franklin T. '''History of Dubuque County, Iowa'''. Chicago: Historical ~~Publication~~ Association, 1880, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt		2. Oldt, Franklin T. '''History of Dubuque County, Iowa'''. Chicago: Western Historical Association, 1880, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt

	3. Tigges		3. Tigges

Randylyon at 03:50, 21 April 2014

2014-04-21T03:50:04Z

← Older revision		Revision as of 03:50, 21 April 2014
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	Source:		Source:

	1. Tigges, John T. and Shaffer, James L. Then & Now--Dubuque, Iowa, Arcadia Publishing Company, p. 55. Online: http://books.google.com/books?id=qoRAnbmv7fUC&pg=PA55&lpg=PA55&dq=Avenue+Top+MIne+%28dubuque%29&source=bl&ots=8neJBq8ev3&sig=7nQLO30DttWIgZj4aXPird1vQQo&hl=en&sa=X&ei=NY5UU-ikGczgsASktYDABA&ved=0CC4Q6AEwAjgK#v=onepage&q=Avenue%20Top%20MIne%20%28dubuque%29&f=false		1. Tigges, John T. and Shaffer, James L. '''Then & Now--Dubuque, Iowa''', Arcadia Publishing Company, p. 55. Online: http://books.google.com/books?id=qoRAnbmv7fUC&pg=PA55&lpg=PA55&dq=Avenue+Top+MIne+%28dubuque%29&source=bl&ots=8neJBq8ev3&sig=7nQLO30DttWIgZj4aXPird1vQQo&hl=en&sa=X&ei=NY5UU-ikGczgsASktYDABA&ved=0CC4Q6AEwAjgK#v=onepage&q=Avenue%20Top%20MIne%20%28dubuque%29&f=false

	2. Oldt, Franklin T. History of Dubuque County, Iowa. Chicago: Historical Publication Association, 1880, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt		2. Oldt, Franklin T. '''History of Dubuque County, Iowa'''. Chicago: Historical Publication Association, 1880, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt

	3. Tigges		3. Tigges

Randylyon at 03:31, 21 April 2014

2014-04-21T03:31:50Z

← Older revision		Revision as of 03:31, 21 April 2014
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	AVENUE TOP MINE. Operating at peak production in 1906-1907, the Avenue Top Mine was located on the site later occupied by Steve's Plumbing at 1094 University Avenue. The site had been a [[LEAD]] mine until 1880 operated by the [[AVENUE TOP MINING COMPANY]]. (1) The Avenue Top Mine yielded about $150,000 in lead ore, then $25 in [[~~DRY BONE~~]], and later over $100,000 in [[~~BLACKJACK~~]]. (2)		AVENUE TOP MINE. Operating at peak production in 1906-1907, the Avenue Top Mine was located on the site later occupied by Steve's Plumbing at 1094 University Avenue. The site had been a [[LEAD]] mine until 1880 operated by the [[AVENUE TOP MINING COMPANY]]. (1) The Avenue Top Mine yielded about $150,000 in lead ore, then $25 in [[DRYBONE]], and later over $100,000 in [[BLACK JACK]]. (2)

	The Avenue Top Mine was first developed in 1875 by the McNulty, Burt and Company with the discovery of a large body of [[GALENA]] in the uppermost level or first opening. The working were later expanded to include three levels. The deepest level yielded sphalerite (ZnS) known locally as [[BLACK JACK]]. In the 1890's the eastern portion of the workings were operated by the Avenue Top Mining Company and the western portion were operated by the Bush Mining Company. The main shaft was located at the present intersection of University and Booth Streets. The exact location is under the electric substation. The shaft was 200 feet to the third opening, 120 feet to the second and 60 feet to the first. (2)		The Avenue Top Mine was first developed in 1875 by the McNulty, Burt and Company with the discovery of a large body of [[GALENA]] in the uppermost level or first opening. The working were later expanded to include three levels. The deepest level yielded sphalerite (ZnS) known locally as [[BLACK JACK]]. In the 1890's the eastern portion of the workings were operated by the Avenue Top Mining Company and the western portion were operated by the Bush Mining Company. The main shaft was located at the present intersection of University and Booth Streets. The exact location is under the electric substation. The shaft was 200 feet to the third opening, 120 feet to the second and 60 feet to the first. (2)

Randylyon at 03:31, 21 April 2014

2014-04-21T03:31:13Z

← Older revision		Revision as of 03:31, 21 April 2014
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	AVENUE TOP MINE. Operating at peak production in 1906-1907, the Avenue Top Mine was located on the site later occupied by Steve's Plumbing at 1094 University Avenue. The site had been a [[LEAD]] mine until 1880 operated by the [[AVENUE TOP MINING COMPANY]]. (1)		AVENUE TOP MINE. Operating at peak production in 1906-1907, the Avenue Top Mine was located on the site later occupied by Steve's Plumbing at 1094 University Avenue. The site had been a [[LEAD]] mine until 1880 operated by the [[AVENUE TOP MINING COMPANY]]. (1) The Avenue Top Mine yielded about $150,000 in lead ore, then $25 in [[DRY BONE]], and later over $100,000 in [[BLACKJACK]]. (2)

	The Avenue Top Mine was first developed in 1875 by the McNulty, Burt and Company with the discovery of a large body of [[GALENA]] in the uppermost level or first opening. The working were later expanded to include three levels. The deepest level yielded sphalerite (ZnS) known locally as [[BLACK JACK]]. In the 1890's the eastern portion of the workings were operated by the Avenue Top Mining Company and the western portion were operated by the Bush Mining Company. The main shaft was located at the present intersection of University and Booth Streets. The exact location is under the electric substation. The shaft was 200 feet to the third opening, 120 feet to the second and 60 feet to the first. (2)		The Avenue Top Mine was first developed in 1875 by the McNulty, Burt and Company with the discovery of a large body of [[GALENA]] in the uppermost level or first opening. The working were later expanded to include three levels. The deepest level yielded sphalerite (ZnS) known locally as [[BLACK JACK]]. In the 1890's the eastern portion of the workings were operated by the Avenue Top Mining Company and the western portion were operated by the Bush Mining Company. The main shaft was located at the present intersection of University and Booth Streets. The exact location is under the electric substation. The shaft was 200 feet to the third opening, 120 feet to the second and 60 feet to the first. (2)

	In 1910 the mine was purchased by the Acquinico Mining and Development Company which owned [[GOLD]], silver, copper, [[LEAD]] and [[ZINC]] mines throughout the United States, Canada, and Mexico. In early January, the company had workers removing all the old equipment in preparation for new mining equipment with three times the capacity. Anticipation was high that the mine would return Dubuque to a center of mining activity. The previous owners had had to close down their operations due to financial problems just as a large pocket of ore had been discovered. (3)		In 1910 the mine was purchased by the Acquinico Mining and Development Company which owned [[GOLD]], silver, copper, [[LEAD]] and [[ZINC]] mines throughout the United States, Canada, and Mexico. In early January, the company had workers removing all the old equipment in preparation for new mining equipment with three times the capacity. Anticipation was high that the mine would return Dubuque to a center of mining activity. The previous owners had had to close down their operations due to financial problems just as a large pocket of ore had been discovered. (3)

	With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (4)		With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (4)
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	1. Tigges, John T. and Shaffer, James L. Then & Now--Dubuque, Iowa, Arcadia Publishing Company, p. 55. Online: http://books.google.com/books?id=qoRAnbmv7fUC&pg=PA55&lpg=PA55&dq=Avenue+Top+MIne+%28dubuque%29&source=bl&ots=8neJBq8ev3&sig=7nQLO30DttWIgZj4aXPird1vQQo&hl=en&sa=X&ei=NY5UU-ikGczgsASktYDABA&ved=0CC4Q6AEwAjgK#v=onepage&q=Avenue%20Top%20MIne%20%28dubuque%29&f=false		1. Tigges, John T. and Shaffer, James L. Then & Now--Dubuque, Iowa, Arcadia Publishing Company, p. 55. Online: http://books.google.com/books?id=qoRAnbmv7fUC&pg=PA55&lpg=PA55&dq=Avenue+Top+MIne+%28dubuque%29&source=bl&ots=8neJBq8ev3&sig=7nQLO30DttWIgZj4aXPird1vQQo&hl=en&sa=X&ei=NY5UU-ikGczgsASktYDABA&ved=0CC4Q6AEwAjgK#v=onepage&q=Avenue%20Top%20MIne%20%28dubuque%29&f=false

	2. ~~Ibid~~.		2. Oldt, Franklin T. History of Dubuque County, Iowa. Chicago: Historical Publication Association, 1880, p. 30. Online: http://archive.org/stream/cu31924028913965/cu31924028913965_djvu.txt

	3. ~~"New Owners Open Avenue Top Mine," Telegraph Herald, January 2, 1910, p. 9~~		3. Tigges

	4. Ludvigson, Greg A. and Dockal, James A. "Lead and Zinc Mining in the Dubuque Area," Online: http://www.igsb.uiowa.edu/browse/leadzinc/leadzinc.htm		4. "New Owners Open Avenue Top Mine," Telegraph Herald, January 2, 1910, p. 9

			5. Ludvigson, Greg A. and Dockal, James A. "Lead and Zinc Mining in the Dubuque Area," Online: http://www.igsb.uiowa.edu/browse/leadzinc/leadzinc.htm



	[[Category: Mines]]		[[Category: Mines]]

Randylyon at 03:24, 21 April 2014

2014-04-21T03:24:23Z

← Older revision		Revision as of 03:24, 21 April 2014
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	The Avenue Top Mine was first developed in 1875 by the McNulty, Burt and Company with the discovery of a large body of [[GALENA]] in the uppermost level or first opening. The working were later expanded to include three levels. The deepest level yielded sphalerite (ZnS) known locally as [[BLACK JACK]]. In the 1890's the eastern portion of the workings were operated by the Avenue Top Mining Company and the western portion were operated by the Bush Mining Company. The main shaft was located at the present intersection of University and Booth Streets. The exact location is under the electric substation. The shaft was 200 feet to the third opening, 120 feet to the second and 60 feet to the first. (2)		The Avenue Top Mine was first developed in 1875 by the McNulty, Burt and Company with the discovery of a large body of [[GALENA]] in the uppermost level or first opening. The working were later expanded to include three levels. The deepest level yielded sphalerite (ZnS) known locally as [[BLACK JACK]]. In the 1890's the eastern portion of the workings were operated by the Avenue Top Mining Company and the western portion were operated by the Bush Mining Company. The main shaft was located at the present intersection of University and Booth Streets. The exact location is under the electric substation. The shaft was 200 feet to the third opening, 120 feet to the second and 60 feet to the first. (2)

	In 1910 the mine was purchased by the Acquinico Mining and Development Company which owned [[GOLD]], silver, copper, [[LEAD]] and [[ZINC]] mines throughout the United States, Canada, and Mexico. In early January, the company had workers removing all the old equipment in preparation for new mining equipment with three times the capacity. Anticipation was high that the mine would return Dubuque to a center of mining activity. The previous owners had had to close down their operations due to financial problems just as a large pocket of ore had been discovered. (1)		In 1910 the mine was purchased by the Acquinico Mining and Development Company which owned [[GOLD]], silver, copper, [[LEAD]] and [[ZINC]] mines throughout the United States, Canada, and Mexico. In early January, the company had workers removing all the old equipment in preparation for new mining equipment with three times the capacity. Anticipation was high that the mine would return Dubuque to a center of mining activity. The previous owners had had to close down their operations due to financial problems just as a large pocket of ore had been discovered. (3)

	With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (2)		With its estimated 700 to 2,000 abandoned mine shafts, Dubuque occasionally experiences the loss of a front yard or collapse of a street. A land-surface collapse along Hill Street in 1983 demonstrates the difficulty in precisely locating old underground mine workings and the uncertainty in predicting areas of possible mine-related subsidence. Published records are only accurate enough to establish the close proximity of this collapse to the abandoned workings of the Avenue Top Mine now inaccessible for underground inspection and evaluation. (4)

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