The Mighty 5: Cannabis Warning for 11.2M Visitors

Last verified: April 2026

The Mighty 5 by the Numbers

The five Utah national parks combined draw more than 11 million visitors per year and form one of the densest national-park clusters in the country. Zion alone is the second-most-visited US national park, behind only Great Smoky Mountains.

Combined: ~838,600 acres, 11.2 million 2024 visitors, ~$3 billion economic impact, 26,500 jobs.

The Federal Statutes

• 36 CFR §2.35(b)(2) — prohibits cannabis on all NPS land, including the Mighty 5
• 21 U.S.C. §844 — first-conviction simple possession: up to 1 year imprisonment and a $1,000 minimum fine
• Federal CFR misdemeanor authority — up to 6 months imprisonment and a $5,000 fine ($10,000 for organizations)

Many cases resolve as $250–$1,000 civil “infraction” tickets on first offense, but a federal-court appearance is mandatory. NPS Law Enforcement Rangers carry full police authority. The prohibition applies equally to:

• Smoking flower
• Vaping (cartridges or flower vaporizers)
• Edibles — including legal Utah gelatinous cubes
• Any CBD product with detectable THC (full-spectrum CBD oils, tinctures, gummies)

A Salt Lake patient with a valid Utah card who hikes into Canyonlands and is found in possession faces a federal charge — the Utah card has no force on federal land.

Federal cannabis enforcement on Utah federal land

National Monuments: 3+ Million More Acres

Beyond the Mighty 5, Utah’s eight National Monuments add more than 3 million acres of federally administered land:

• Grand Staircase-Escalante (~1.87M acres after 2021 restoration)
• Bears Ears (1,361,849 acres)
• Cedar Breaks
• Natural Bridges
• Hovenweep
• Rainbow Bridge
• Dinosaur
• Timpanogos Cave

Both Grand Staircase-Escalante and Bears Ears are again under DOI review for potential reductions as of April 2025. The cannabis prohibition under 36 CFR §2.35(b)(2) does not change with monument-boundary changes — the ground is federal regardless.

National Forests: 8.1 Million Acres

USFS administers about 23.4% of federal land in Utah — roughly 8.1 million acres across five national forests. 36 CFR Part 261 contains parallel cannabis prohibitions:

• Uinta-Wasatch-Cache (~2.1–2.5M acres along the Wasatch Front)
• Ashley (1,384,132 acres including the High Uintas Wilderness and Kings Peak at 13,528 ft)
• Dixie (~1.9M acres in southern Utah)
• Fishlake (~1.5M acres in central Utah)
• Manti-La Sal (~1.2–1.3M acres in the southeast)

Practical Guidance for Visitors

The Utah card has no force on federal land. A Salt Lake patient with a valid Utah card who hikes into Canyonlands and is found in possession faces a federal charge. Out-of-state recreational users who cross federal acreage face stacked Utah and federal exposure: Utah law treats most possession as a Class B misdemeanor (six months, $1,000), and federal law treats simple possession as up to one year and $1,000.

Private lodging just outside park boundaries does not change the analysis inside the park. Even at private lodging in Springdale outside Zion’s gate, lawful possession requires a Utah card or a 21-day non-resident card; consumption inside the park is illegal regardless of where it was purchased or consumed before entry.

Storage Best Practice

• Original child-proof container
• Sealed
• Stored off federal land
• Never within 1,000 feet of a school or other Drug-Free Zone
• Never carried into a park — even unopened

Edge Cases

• Through-routes: US-89, SR-9 (Zion), SR-12 (Bryce/Capitol Reef/Grand Staircase) all cross federal land. Cannabis in a vehicle on these roads is federal possession, even if the destination is private property in Utah.
• CBD products: Hemp-derived CBD with ≤0.3% THC is federally legal under the 2018 Farm Bill, but products with detectable THC above that threshold remain prohibited on federal land.
• Tribal land: Utah’s reservations are sovereign jurisdictions with their own cannabis policies. The Navajo Nation generally prohibits cannabis; the Ute Mountain Ute, Ute Indian Tribe, Paiute, San Juan Southern Paiute, Goshute, and Skull Valley Goshute have separate frameworks. Always check the specific tribal authority before entry.

Explore More

Official Sources

• Zion National Park
• Bryce Canyon National Park
• Arches National Park
• Capitol Reef National Park
• Canyonlands National Park
• 36 CFR §2.35