USGS 1:24,000 scale topo maps, also known as 7.5-minute quadrangles, can provide valuable information to anyone hiking or camping in the United States. Each map covers a four-sided area with 7.5 minutes of latitude and 7.5 minutes of longitude. Contour lines on the maps portray the shape and elevation of the land. Campgrounds, trails and water sources are just a few of the many features represented on the maps.
Are you planning to visit a national park? Do you need a free topo map? Check-out these free USGS topo maps: