Collection
Serial/Series Title
Digital US Topo Maps: 7.5 Minute Series (Topographic)
50
2000 Census County Subdivision Block Map
46
7.5 Minute Series (Topographic)
44
2010 Census County Block Map
33
2010 Census P.L. 94-171 County Block Map
33
1990 Census County Block Map
32
2000 Census County Block Map
32
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
25
2007 Economic Census Map
9
30 x 60 Minute Series (Topographic)
8
3 More
Decade
329 Matching Results
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Explosive-Engine.
Patent for "an improved engine of the internal combustion type, in which the explosion occurs between two oppositely moving pistons arranged in a cylinder and connected with independent crank shafts." (lines 13-17). The engine also includes a new type of valve gear with mechanically triggered valves and an apparatus for the forced water cooling of the engine.
Date:
November 19, 1918
Creator:
Cooper, Willis W.
Object Type:
Patent
System:
The Portal to Texas History
Afton 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:
1981
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Afton Quadrangle
Satellite image 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:
2010
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Afton 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 1:24000
Date:
2012
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Afton 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 1:24000
Date:
1971
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Ballard Camp 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:
1981
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Ballard Camp Quadrangle
Satellite image 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:
2010
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Ballard Camp 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 1:24000
Date:
2012
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Ballard Camp 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 1:24000
Date:
1981
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Ballard Camp 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 1:24000
Date:
1968
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Childress
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 1:100000
Date:
1994
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Childress
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 1:100000
Date:
1986
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
China Canyon 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:
1981
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
China Canyon Quadrangle
Satellite image 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:
2010
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
China Canyon 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 1:24000
Date:
1981
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
China Canyon 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 1:24000
Date:
2012
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
China Canyon 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 1:24000
Date:
1971
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Cottonwood Camp 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:
1981
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Cottonwood Camp Quadrangle
Satellite image 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:
2010
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Cottonwood Camp 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 1:24000
Date:
1981
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Cottonwood Camp 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 1:24000
Date:
2013
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Cottonwood Camp 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 1:24000
Date:
1969
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Dick Moore Canyon 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:
1991
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Dick Moore Canyon Quadrangle
Satellite image 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:
2010
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History