RANDY OLSON, a computer science and engineering Ph.D. candidate at Michigan State University, is a man who likes to design road trips. He has previously organized the ultimate US road trip and the best cross-Canada journey and, this time, Olson created an itinerary that would allow travelers to see every single national park in the 48 contiguous states without wasting any time.

The road trip Olson designed is 14,498 miles long and it would take you about two months to complete the loop if you’re going “at a breakneck speed.” In other words, you’d better take a few months off work before getting on the road.

Here’s a list of all the national parks Olson included in his itinerary. Note that you can start the trip at any stop in the loop.

  • 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

To find out more about this particular itinerary and Olson’s research, visit his website.