Areal Geology, Van Horn Quadrangle, Texas
The United States Geological Survey publishes topographic maps of the entire United States. These maps are often used as the basis for other commercial map products and they serve as one of the best tools available for navigating the countrys wild and urban terrain. The maps show contour lines (lines of equal elevation) which depict natural features of the land, as well as streams, roads, trails, forest types, buildings, and other natural man-made features. It has become more difficult over the years to find these older publication dates. This areal geology sheet also shows the different types of sedimentary rocks and their eras. This areal geology sheet also shows the different types of surficail, sedimentary, and igneous rocks.
Condition: Good - age toning, stain in center of map
Map Maker: U.S. Geological Survey, George Otis Smith, Director
Coloring: Printed Color