Resource Type
Collection
Serial/Series Title
Digital US Topo Maps: 7.5 Minute Series (Topographic)
100
7.5 Minute Series (Topographic)
55
2010 Census County Block Map
54
2010 Census P.L. 94-171 County Block Map
54
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
50
1990 Census County Block Map
43
2000 Census County Subdivision Block Map
42
2000 Census County Block Map
37
Western United States 1:250,000
15
30 x 60 Minute Series (Topographic)
12
12 More
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495 Matching Results
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Railway-Tricycle.
Patent for a railway-tricycle that consists "of a frame carrying a front and rear wheel, a cross-bar mounted to swing on the said frame and carrying a guide-wheel for the second rail, and a handle-bar connected with the said cross-bar to manipulate the latter" (line 14-19).
Date:
November 26, 1895
Creator:
Mellor, William J.
Object Type:
Patent
System:
The Portal to Texas History
Propeller
Patent for a boat propeller that does not create a vacuum behind it and is more efficient than other propellers.
Date:
July 23, 1912
Creator:
Blake, David H.
Object Type:
Patent
System:
The Portal to Texas History
Dryden Crossing Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1918
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Indian Wells Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1918
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Longfellow Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1920
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Indian Wells Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1924
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Sanderson Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1928
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Independence Draw Quadrangle Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1929
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Sheffield Sheet
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:125000
Date:
1929
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Dryden Crossing Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1932
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Malvado Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1944
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Dryden Crossing Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1949
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Indian Wells Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1949
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Indian Wells Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1949
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Malvado Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1957
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Fort Stockton
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1958
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Sonora
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1958
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Del Rio
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1964
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Emory Peak
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1965
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Fort Stockton
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1965
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Sonora
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1965
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Emory Peak
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date:
1967
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Hackberry Draw Southeast Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1969
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Hat-A Ranch Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date:
1969
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History