Yosemite Nat'l Park
Yellowstone Nat'l Pk
Acadia Nat'l Pk
Roosevelt Lk & Grand Coulee Dam
Arches Nat'l Pk
Bryce Canyon Nat'l Pk
Virgin Islands Nat'l Pk
Grand Canyon
Zion Nat'l Pk
Mt. Ranier Nat'l Pk
Rocky Mtn Nat'l Pk
Grand Tetons Nat'l Pk
Monmonth Cave Nat'l Pk
Jefferson's Monument to Westward Expansion
Sleeping Bear Dunes N L
Craters of the Moon Nat'l Pk
Theodore Roosevelt Nat'l Pk
Death Valley Nat'l Pk
Capitol Reef Nat'l Pk
Crater Lake Nat'l Pk