Just for fun (click to zoom), a map of 49 of the 56 U.S. National Parks, National Forests, and National Wildlife Refuges shown on the “America the Beautiful” quarters. How many have you visited?
Locations auto-extracted from Wikipedia pages using R, and colours indicating elevation, using an elevation dataset from www.worldclim.org (a dataset which treats the Great Lakes as land) and a palette I knocked together.
- Tuskegee Airmen N.H.S., Alabama
- Denali N.P.P., Alaska
- Grand Canyon N.P., Arizona
- Hot Springs N.P., Arkansas
- Yosemite N.P., California
- Great Sand Dunes N.P.P., Colorado
- Weir Farm N.H.S., Connecticut
- Bombay Hook N.W.R., Delaware
- Frederick Douglass N.H.S., District of Columbia
- Everglades N.P., Florida
- Cumberland Island N.S., Georgia
- Hawaii Volcanoes N.P., Hawaii
- Frank Church–River of No Return Wilderness, Idaho
- Shawnee N.F., Illinois
- George Rogers Clark N.H.P., Indiana
- Effigy Mounds N.M., Iowa
- Tallgrass Prairie N.P., Kansas
- Cumberland Gap N.H.P., Kentucky
- Kisatchie N.F., Louisiana
- Acadia N.P., Maine
- Fort McHenry N.M., Maryland
- Lowell N.H.P., Massachusetts
- Pictured Rocks N.L., Michigan
- Voyageurs N.P., Minnesota
- Vicksburg N.M.P., Mississippi
- Ozark N.S.R., Missouri
- Glacier N.P., Montana
- Homestead N.M., Nebraska
- Great Basin N.P., Nevada
- White Mountain N.F., New Hampshire
- Ellis Island, New Jersey
- Chaco Culture N.H.P., New Mexico
- Saratoga N.H.P., New York
- Blue Ridge Parkway, North Carolina
- Theodore Roosevelt N.P., North Dakota
- Perry’s Victory, Ohio
- Chickasaw N.R.A., Oklahoma
- Mount Hood N.F., Oregon
- Gettysburg N.M.P., Pennsylvania
- Block Island N.W.R., Rhode Island
- Fort Sumter N.M., South Carolina
- Mount Rushmore N.M., South Dakota
- Great Smoky Mountains N.P., Tennessee
- San Antonio Missions N.H.P., Texas
- Arches N.P., Utah
- Marsh-Billings-Rockefeller N.H.P., Vermont
- Shenandoah N.P., Virginia
- Olympic N.P., Washington
- Harpers Ferry N.H.P., West Virginia
- Apostle Islands N.L., Wisconsin
- Yellowstone N.P., Wyoming
- N.P. of American Samoa, American Samoa
- War in the Pacific N.H.P., Guam
- American Memorial Park, Northern Mariana Islands
- El Yunque N.F., Puerto Rico
- Salt River Bay N.H.P., U.S. Virgin Islands
Scientific Gems 