RVers who enjoy America's national parks know that most government campgrounds weren't designed to accommodate today's recreational vehicles. However, some exceptions exist, especially in the vast open lands west of the Mississippi. Here are the best national park campgrounds for RVs in California, South Dakota, Texas, Utah and Wyoming.

The Brooks Range is the northernmost portion of the Rocky Mountains, extending over 700 miles from the Bering Sea to the Canadian border. Steep, rocky slopes and glacier-carved valleys dominate this vast, rugged landscape along the east-to-west running Continental Divide. The Brooks Range is nearly entirely protected and open for all to enjoy.

The National Park Service recently issued a modified concession prospectus for Glacier Bay National Park in Alaska.

It's the stuff of legends, of treasure seekers. Somewhere, not far from land, lies buried treasure in the seabed of Drakes Bay. Within the remains of the 16th century Spanish galleon San Agustin there could be priceless heirlooms, or merely shards of porcelain dishes that the ship was carrying from the Philippines to Mexico. What is known is that the wreck of the San Agustin in 1595 in waters now within Point Reyes National Seashore is the first recorded shipwreck on the West Coast.