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January 1, 1975

Land use change map, 1970-1972, Washington urban area, D.C., Maryland, and Virginia Land use change map, 1970-1972, Washington urban area, D.C., Maryland, and Virginia

No abstract available.

January 1, 1975

Land-use classification map of the Colorado Springs-Castle Rock area, Front Range Urban Corridor, Colorado Land-use classification map of the Colorado Springs-Castle Rock area, Front Range Urban Corridor, Colorado

No abstract available.

January 1, 1975

Land-use classification of the greater Denver area, Front Range Urban Corridor, Colorado Land-use classification of the greater Denver area, Front Range Urban Corridor, Colorado

The Greater Denver area, in the Front Range Urban Corridor of Colorado, is an area of rapid population growth and expanding land development. At present no overall land-use policy exists for this area, although man individuals and groups are concerned about environmental, economic, and social stresses caused by population pressures. A well-structured land-use policy for the entire Front...

January 1, 1975

Lead occurrences in Alaska Lead occurrences in Alaska

No abstract available.

January 1, 1975

Magnetic declination in the United States; epoch 1975.0 Magnetic declination in the United States; epoch 1975.0

No abstract available.

January 1, 1975

Map of rock types in bedrock of Allegheny County, Pennsylvania Map of rock types in bedrock of Allegheny County, Pennsylvania

No abstract available.