Trinidad Quadrangle, Colorado

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. The 7 1/2 minute quadrangle maps are published at a scale of 1:24,000. It has become more difficult over the years to find these older publication dates.

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