The following is a list of all National Parks included in Olson’s route:

• Grand Canyon National Park, Arizona
• Petrified Forest National Park, Arizona
• Saguaro National Park, Arizona
• Guadalupe Mountains National Park, Texas
• Carlsbad Caverns National Park, New Mexico
• Big Bend National Park, Texas
• Hot Springs National Park, Arkansas
• Mammoth Cave National Park, Kentucky
• Great Smoky Mountains National Park, Tennessee
• Everglades National Park, Florida
• Dry Tortugas National Park, Florida
• Biscayne National Park, Florida
• Congaree National Park, South Carolina
• Shenandoah National Park, Virginia
• Acadia National Park, Maine
• Cuyahoga Valley National Park, Ohio
• Isle Royale National Park, Michigan
• Voyageurs National Park, Minnesota
• Theodore Roosevelt National Park, North Dakota
• Badlands National Park, South Dakota
• Wind Cave National Park, South Dakota
• Rocky Mountain National Park, Colorado
• Great Sand Dunes National Park and Preserve, Colorado
• Black Canyon of the Gunnison National Park, Colorado
• Mesa Verde National Park, Colorado
• Canyonlands National Park, Utah
• Arches National Park, Utah
• Capitol Reef National Park, Utah
• Bryce Canyon National Park, Utah
• Zion National Park, Utah
• Great Basin National Park, Nevada
• Grand Teton National Park, Wyoming
• Yellowstone National Park, Wyoming
• Glacier National Park, Montana
• North Cascades National Park, Washington
• Mount Rainier National Park, Washington
• Olympic National Park, Washington
• Crater Lake National Park, Oregon
• Redwood National and State Parks, California
• Lassen Volcanic National Park, California
• Yosemite National Park, California
• Kings Canyon National Park, California
• Sequoia National Park, California
• Pinnacles National Park, California
• Channel Islands National Park, California
• Joshua Tree National Park, California
• Death Valley National Park, California