Is cannabis legal in Yellowstone National Park?

No. Yellowstone is entirely federal land spanning Montana, Wyoming, and Idaho. Cannabis possession anywhere in the park is a federal misdemeanor regardless of which state entrance you use.

Where can I buy cannabis near Glacier National Park?

Whitefish (15 dispensaries) and Columbia Falls (13 dispensaries) are the primary gateway towns for Glacier. Purchase and consume at your private lodging before entering the park, and leave all cannabis behind.

Where can I buy cannabis near Yellowstone?

West Yellowstone (4 dispensaries), Gardiner (2), Big Sky (8), and Bozeman (numerous) are the main Montana gateway towns for Yellowstone. Purchase and consume at your lodging before entering the park.

What happens if you get caught with cannabis in a national park?

Cannabis possession on federal land is a federal misdemeanor (36 CFR 2.35) carrying up to $1,000 fine and 1 year imprisonment. Typical outcomes include citation, fine, and confiscation. It goes on your record as a federal offense.

Cannabis & Montana Parks — Glacier Is Off-Limits

Q: Is cannabis legal in Glacier National Park?

No. Glacier National Park is federal land where cannabis possession is a federal misdemeanor carrying up to 1 year imprisonment and a $1,000 fine. Montana state law has no effect within park boundaries. Medical cards provide no protection.

Legal Disclaimer: This information reflects Montana cannabis law as of April 2026 and is for educational purposes only. It is not legal advice. Laws and regulations change — always verify current rules with the Cannabis and Alcohol Regulation Division or a qualified attorney. Cannabis remains illegal under federal law.

Last verified: March 2026

Federal Land = Federal Law

Montana is home to two of America's most visited national parks, and both are entirely under federal jurisdiction. Despite Montana's legal cannabis market, possessing any amount of cannabis on federal land is a federal misdemeanor under the Controlled Substances Act. Montana state law has absolutely no effect within park boundaries.

Cannabis remains a Schedule I controlled substance under the federal Controlled Substances Act (21 U.S.C. 812). Possession on federal land is a federal misdemeanor carrying up to 1 year imprisonment and a $1,000 fine.
National Park Service Law Enforcement

Glacier National Park

Glacier National Park encompasses over 1 million acres of pristine wilderness in northwest Montana. Cannabis is illegal everywhere within the park, including:

All roads, including Going-to-the-Sun Road
All campgrounds and picnic areas
All trailheads and hiking trails
All visitor centers and developed areas
All backcountry campsites
Glacier Park Lodge and other park lodging
All parking lots within park boundaries

Gateway dispensaries: Whitefish (15 dispensaries), Columbia Falls (13). Purchase and consume at your lodging before entering the park. Leave all cannabis products behind.

Yellowstone National Park

Yellowstone National Park spans over 2.2 million acres across Montana, Wyoming, and Idaho. The entire park is federal land, and cannabis is illegal regardless of which state entrance you use. This includes:

All roads, loops, and scenic drives
All campgrounds (Mammoth, Madison, Grant Village, etc.)
All geyser basins, including Old Faithful area
All visitor centers and ranger stations
All lodges (Old Faithful Inn, Lake Hotel, etc.)
Lamar Valley, Hayden Valley, and all wildlife viewing areas
All backcountry and wilderness areas

Montana gateway dispensaries: West Yellowstone (4 dispensaries), Gardiner (2), Big Sky (8), Bozeman (numerous). Purchase and consume at your lodging before entering the park.

Other Federal Land in Montana

The national parks are the most visible, but Montana has vast federal landholdings where the same rules apply:

National Forests

Flathead National Forest — surrounds Glacier, 2.4 million acres
Gallatin National Forest — Bozeman to Yellowstone corridor
Lewis and Clark National Forest — central Montana
Lolo National Forest — Missoula area
Helena-Lewis and Clark National Forest
Bitterroot National Forest
Beaverhead-Deerlodge National Forest
Kootenai National Forest
Custer Gallatin National Forest

BLM Land

The Bureau of Land Management administers over 8 million acres in Montana. BLM land is federal land, and cannabis possession is a federal offense. Much of eastern Montana's rangeland and some popular recreation areas near rivers are BLM-managed.

Wildlife Refuges

Montana has numerous National Wildlife Refuges managed by the U.S. Fish and Wildlife Service, all federal jurisdiction.

Military Installations

Malmstrom Air Force Base (Great Falls) and any other military installations are federal property where cannabis is strictly prohibited.

What Happens If You Are Caught

Cannabis possession on federal land is typically handled as a federal misdemeanor (Class B, 36 CFR 2.35):

Fine: Up to $1,000
Imprisonment: Up to 1 year
Typical outcome: Citation, fine, and confiscation. Park rangers have discretion, but the violation is real and on your record as a federal offense.

Medical cannabis cards provide no protection on federal land. The federal government does not recognize state medical cannabis programs.

Practical Advice for Park Visitors

Buy cannabis in a gateway town — Whitefish, Columbia Falls, Big Sky, West Yellowstone, Gardiner, Bozeman, or Missoula
Consume at your private lodging before heading to the park
Leave all cannabis products at your lodging or in a secure location outside the park
Do not store cannabis in your vehicle when driving through the park — a vehicle search could discover it
After the park — return to your lodging to consume. Buy more at a dispensary if needed.

The Simple Rule

Enjoy Montana's legal cannabis market at your private lodging. Enjoy Glacier and Yellowstone cannabis-free. Do not try to combine the two. The parks are worth experiencing fully present anyway.

Are You 21 or Older?

National Park Cannabis Warning