Title
Map of Larimer and Boulder counties
County
[Boulder, Larimer]
Identifier
43318900.tif
Title
Map of Boulder County claims
Date Issued
1916
County
Boulder
Identifier
43348500.tif
Title
Map of The Boulder Mines Inc. workings
Date Issued
1936
County
Boulder
Identifier
43349300.tiff
Title
Map of the Gladys Mine and adjoining claims in Sugar-Loaf Mining District
Date Issued
1935
County
Boulder
Identifier
43351500.tif
Title
Mineral survey No. 20605
Date Issued
[1939]
County
Boulder
Identifier
43353000.tif
Title
Plat of Cripple Creek District Railroad
Date Issued
Undated
County
Boulder
Identifier
43353100.tif
Title
Map of tunnel plans for Boulder County mines
Date Issued
Undated
County
Boulder
Identifier
43353200.tif
Title
Township No. 1 south, range No. 71 west of the 6th principal meridian, Colorado
Date Issued
1930
County
Boulder
Identifier
43355100.tif
Title
Longitudinal section of the Golden Age Mine
Date Issued
1930
County
Boulder
Identifier
43355400.tif
Title
Longitudinal section, Cold Spring Mine
Date Issued
1929
County
Boulder
Identifier
43356000.tif
Title
Map of Colorado King and other claims in Boulder County
Date Issued
Undated
County
Boulder
Identifier
43356400.tif
Title
Bureau of mines trenches and drill holes near Rambler Shaft
Date Issued
Undated
County
Boulder
Identifier
43356501.tif
Title
Rambler Mine
Date Issued
Undated
County
Boulder
Identifier
43356502.tif
Title
Map of Boulder County claims
Date Issued
1927-03-27/1930-02-19
County
Boulder
Identifier
43357500.tif
Title
Map showing Chingis Kahn group of mining claims
Date Issued
1907
County
Boulder
Identifier
43367000.tif
Title
Map of patented mining claims, Ward Mining District
Date Issued
Undated
County
Boulder
Identifier
43375400.tif
Title
Map showing Fitchburg-Gray copper workings
Date Issued
1936
County
Boulder
Identifier
43375501.tif
Title
Map showing Fitchburg-Gray copper workings
Date Issued
1936
County
Boulder
Identifier
43375502.tif
Title
Map of Boulder County claims in Colorado
County
Boulder
Identifier
43375600.tif
Title
Map of topographical features over mine claims in Boulder County
Date Issued
Undated
County
Boulder
Identifier
43375700.tif
Title
Kicker Shaft
County
Boulder
Identifier
43375900.tif
Title
Map of Last Chance Mine
Date Issued
[1937, 1937-10-09]
County
Boulder
Identifier
43376000.tif
Title
Grand Island Mining District
County
Boulder
Identifier
43376100.tif
Title
Gale Shaft
County
Boulder
Identifier
43376200.tif
Title
Grand Island Mining District
County
Boulder
Identifier
43376300.tif
Title
Map of Laura, Hidden Treasure, Eliza, Lily and Pinto claims in Boulder County, Colorado
County
Boulder
Identifier
43376400.tif
Title
Prospect Tunnel Under Hurricane Hill
Date Issued
[1944]
County
Boulder
Identifier
43377100.tif
Title
Cold Spring and Orange Blossom
County
Boulder
Identifier
43377200.tif
Title
Kicker, Star, Lastchance, Tenderfoot Mines
County
Boulder
Identifier
43377300.tif
Title
Lily Tunnel, Gale Shaft, Clyde Mine
County
Boulder
Identifier
43377400.tif
Title
Madeline, Cross, and Firth Mines
County
Boulder
Identifier
43377500.tif
Title
Star Mine
Date Issued
1943
County
Boulder
Identifier
43377601.tif
Title
Star Mine
Date Issued
1943
County
Boulder
Identifier
43377602.tif
Title
Star Mine
Date Issued
1943
County
Boulder
Identifier
43377603.tif
Title
Star Mine
Date Issued
1943
County
Boulder
Identifier
43377604.tif
Title
Map of Black Jack Tunnel, Jack and Summit, Cross No. 2 Tunnel, New York and Philadelphia Shafts, Pansy Blossom, Spencer Tunnel, and Carlberg
Date Issued
[1944]
County
Boulder
Identifier
43377700.tif
Title
Firth-Sterling Steel Co. Map of Claims and Mines north end Hurricane Hill
Date Issued
Undated
County
Boulder
Identifier
43377800.tif
Title
Tenderfoot Shaft
Date Issued
1944
County
Boulder
Identifier
43377900.tif
Title
Hummer, Hoosier, and Phillip shafts
County
Boulder
Identifier
43378000.tif
Title
Illinois Mine geologic maps
County
Boulder
Identifier
43378100.tif
Title
Illinois and Illinois Extension
County
Boulder
Identifier
43378200.tif
Project-Roll-Frame
AIL 9-3
County
[Larimer, Boulder]
State
Colorado
Date
1938-06-28
Project-Roll-Frame
AIL 9-55
County
[Larimer, Boulder]
State
Colorado
Date
1938-07-02
Project-Roll-Frame
AIL 10-3
County
[Larimer, Boulder]
State
Colorado
Date
1938-06-27
Project-Roll-Frame
AIL 47-81
County
[Larimer, Boulder]
State
Colorado
Date
1937-07-22
Project-Roll-Frame
AIL 48-43
County
[Larimer, Boulder]
State
Colorado
Date
1937-07-22
Project-Roll-Frame
AIN 47-55
County
[Boulder, Jefferson]
State
Colorado
Date
1937-07-22
Project-Roll-Frame
AIN 48-69
County
[Boulder, Jefferson]
State
Colorado
Date
1937-07-22
Project-Roll-Frame
AIN 50-48
County
[Boulder, Jefferson]
State
Colorado
Date
1937-07-23
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