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Finding a topographic map in the Government Documents Map Collection, University of Texas at Arlington Library
The topographic maps are filed in folders using two different classification number series. The original series used the Superintendent of Documents classification number stem I 19.81: latitude/longitude number digits of the lower right corner of the map. I 19.81: 32097 contains maps of Tarrant County, Texas.
The second series, for any map that depicts any part of a National Forest or National Grassland, inserts a National Forest/National Grassland “Cutter Code” and the year of publication before the latitude/longitude digit number. The Kisatchie National Forest in Louisiana (cutter code K 62) has land in 7 parishes, and covers multiple latitude/longitude quadrangles.
This series begins starts with a few maps in 1992, and continues through 2008. More than 1,400 revised topographic quadrangle maps are arranged in Forest Service cutter number folders Some of the early year maps may be interfiled with the maps of the digit only folders.
Ask the librarian in Room 215 for help in determining if the library may have a map sheet in the Forest Service Cutter code map folders, I 19.81: <cutter code/year/ that supersedes a map arranged by latitude/longitude quadrangle.
The form has search blocks for Feature Name, State, County, Feature ID, Feature Class, and Elevation. Here are some common feature classes to use in a search to determine the latitude,longitude, and map sheet name.
- Airport for a named airport or airfield.
- Bridge for an officially named bridge.
- Cemetery for a named cemetery that is at least 50 feet by 50 feet in dimension.
- Census for a Census Designated Place of the Census Bureau. The Woodlands, Texas is a Census Designated Place with more than 80,000 residents.
- Church for a church in a rural sparsely populated area, or a prominent building in an urban area
- Civil for a county or parish name. This search will return a list of all topographic map sheets covering the county or parish.
- Forest. Type in the name of a National Forest such as Mark Twain National Forest, and a record will be returned. Click on the feature name, and the next result page will include the names of counties and coordinates and map sheet name for each map depicting part of the forest. This may also work with many state forests.
- Lake. Also try reservoir.
11. Park. Use for local parks, state parks, and stadiums.
12. Populated Place. Use for incorporated cities and towns.
13. Post Office. May work for heavily populated areas, but not in rural areas.
14. Reservoir. Use in conjunction with Lake.
15. Stream. Use with any linear body of water. The Mississippi River is a “stream” in this system.
16. Summit. Search for mountains or hills using this feature.
17. Woods. Can be used to search for a named forest, a thicket, or a named woods.
The Feature record in the Geonames server will include a latitude and longitude, and a map sheet name.
The library’s 7.5 minute series 1: 24000 scale maps are in map cabinet folders with classification number codes that begin I 19.81: latitudenumberlongitude number. Dallas County is in folder I 19.81: 32096, Tarrant Count in folder I 19.81: 32097, and Denton County in folder I 19.81: 33096.
The library has some maps at the 1:25000 and 1:50000 scale in folders I 19.81/2: . Most of these maps are for Texas Quadrangles.
The Bureau of Land Management publishes maps of the United States west of longitude degree 103 (New Mexico, Colorado, Wyoming, and Montana, and states to the west), and North Dakota and South Dakota west of longitude degree 101. There are two map series, assigned Superintendent of Documents classification numbers I 53.11/4 and I 53.11/4-2 .
A 2007 Forest Service Table is available to identify Congressional Districts and Counties containing U.S. Forest Service land. Some forests and grasslands are in multiple counties and multiple Congressional Districts.
Visit U.S. Forest Service Table 6 – NFS Acreage by State, Congressional District and County