Topographic Map Index
Maps in the USGS 7.5 minute series are highly encouraged for most backcountry use in Big Bend. They have a scale of 1:24,000 and a contour interval of 40.
It takes thirty-one maps to cover the area of the park:
Where Can You Get Them?
NOTE: Conditions of "trails", "roads", physiographic features and structures depicted on USGS maps may have changed, be overgrown or no longer exist.
Did You Know?
Robert Hill, working for the U.S. Geological Survey, was the first person to successfully float the canyons of the Rio Grande in the area of Big Bend. His trip, from Presidio to Lantry took over a month.