NPS Class I Areas

There are 48 units of the National Park System with Class I areas. In some cases only the wilderness portion of a unit is designated as Class I, because that section met the designation criteria in 1977 when the Clean Air Act was amended. In addition, there is one Class I area that the NPS co-manages with Canada as an international park.

Main Page for Class I Areas

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

A

  • Acadia National Park (ME)
  • Arches National Park (UT)
↑ Top of Page

B

  • Badlands National Park (SD)
  • Bandelier National Monument (NM)
  • Big Bend National Park (TX)
  • Black Canyon of the Gunnison National Park (CO)
  • Bryce Canyon National Park (UT)
↑ Top of Page

C

  • Canyonlands National Park (UT)
  • Capitol Reef National Park (UT)
  • Carlsbad Caverns National Park (NM)
  • Chiricahua National Monument (AZ)
  • Crater Lake National Park (OR)
  • Craters of the Moon National Monument (ID)
↑ Top of Page

D

  • Denali National Park and Preserve (AK)
↑ Top of Page

E

  • Everglades National Park (FL)
↑ Top of Page

G

  • Glacier National Park (MT)
  • Grand Canyon National Park (AZ)
  • Grand Teton National Park (WY)
  • Great Sand Dunes National Monument (CO)
  • Great Smoky Mountains National Park (TN/NC)
  • Guadalupe Mountains National Park (TX)
↑ Top of Page

H

  • Haleakala National Park (HI)
  • Hawaii Volcanoes National Park (HI)
↑ Top of Page

I

  • Isle Royal National Park (MI)
↑ Top of Page

J

  • Joshua Tree National Park (CA)
↑ Top of Page

K

  • Kings Canyon National Park (CA)
↑ Top of Page

L

  • Lassen Volcanic National Park (CA)
  • Lava Beds National Monument (CA)
↑ Top of Page

M

  • Mammoth Cave National Park (KY)
  • Mesa Verde National Park (CO)
  • Mount Rainier National Park (WA)
↑ Top of Page

N

  • North Cascades National Park (WA)
↑ Top of Page

O

  • Olympic National Park (WA)
↑ Top of Page

P

  • Petrified Forest National Park (AZ)
  • Pinnacles National Monument (CA)
  • Point Reyes National Seashore (CA)
↑ Top of Page

R

  • Redwood National Park (CA)
  • Rocky Mountain National Park (CO)
  • Roosevelt Campobello International Park (ME/CANADA)
    • Note: This area is jointly administered by the USA and Canada
↑ Top of Page

S

  • Saguaro National Park (AZ)
  • Sequoia National Park (CA)
  • Shenandoah National Park (VA)
↑ Top of Page

T

  • Theodore Roosevelt National Park (ND)
↑ Top of Page

V

  • Virgin Islands National Park (VI)
  • Voyageurs National Park (MN)
↑ Top of Page

W

  • Wind Cave National Park (SD)
↑ Top of Page

Y

  • Yellowstone National Park (WY/MT/ID)
  • Yosemite National Park (CA)
↑ Top of Page

Z

  • Zion National Park (UT)
↑ Top of Page

Last updated: March 13, 2018

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