Last verified: March 2026
Why This Matters for Washington Visitors
Washington is known for its spectacular natural beauty — and much of that beauty sits on federal land. Three iconic national parks, four major national forests, and multiple military installations are all federal property where cannabis remains illegal under the Controlled Substances Act, regardless of Washington state law.
Cannabis is a Schedule I controlled substance under federal law. Possession of any amount on federal land is a federal misdemeanor punishable by up to one year in prison and a $1,000 fine for a first offense (21 U.S.C. § 844). This applies to everyone — tourists, Washington residents, and medical patients alike.
If you are visiting Washington to hike, camp, or explore the outdoors, there is a very good chance your destination is federal land. Read this page before you go anywhere with cannabis.
It shall be unlawful for any person knowingly or intentionally to possess a controlled substance... Any person who violates this subsection may be sentenced to a term of imprisonment of not more than 1 year, and shall be fined a minimum of $1,000.
21 U.S.C. § 844 — Simple Possession
Washington's National Parks: All Federal, All Off-Limits
Washington has three national parks, each drawing millions of visitors annually. Cannabis is illegal in all of them.
| National Park | Location | Nearest City with Dispensaries |
|---|---|---|
| Mt. Rainier National Park | Pierce / Lewis Counties | Tacoma (~60 mi NW), Seattle (~90 mi NW) |
| Olympic National Park | Olympic Peninsula | Port Angeles, Sequim (gateway towns) |
| North Cascades National Park | Whatcom / Skagit / Chelan Counties | Burlington, Bellingham, or Seattle metro |
Mt. Rainier National Park is Washington's most iconic destination and one of the most visited national parks in the Pacific Northwest. The park boundary encompasses over 236,000 acres. Do not bring any cannabis into the park. Leave it at your lodging in Tacoma, Seattle, or wherever you are staying and enjoy it when you return.
National Forests
Washington has four major national forests, all managed by the U.S. Forest Service. These are federal land where cannabis is illegal:
| National Forest | Area | Key Details |
|---|---|---|
| Mt. Baker-Snoqualmie National Forest | ~1.7 million acres | Stretches from the Canadian border to Mt. Rainier. Includes most popular hiking areas east of Seattle (Snoqualmie Pass, Mt. Baker ski area). |
| Olympic National Forest | ~628,000 acres | Surrounds Olympic National Park on the Olympic Peninsula. Many access roads pass through this forest. |
| Gifford Pinchot National Forest | ~1.3 million acres | Southern Cascades including the Mt. St. Helens National Volcanic Monument area. |
| Okanogan-Wenatchee National Forest | ~4 million acres | Eastern slopes of the Cascades. Includes popular recreation areas from Leavenworth to the Canadian border. |
Together, these four national forests cover millions of acres across Washington. Many of the state's most popular hiking trails, ski areas, campgrounds, and scenic drives are within these forests. If you are heading into the mountains or forests of Washington, there is a high probability you are entering federal land.
The Mt. Baker-Snoqualmie National Forest covers most of the Cascade Range hiking areas accessible from Seattle. Popular destinations like Snoqualmie Pass, Stevens Pass, the Alpine Lakes Wilderness, and trails along I-90 and Highway 2 are on federal land. Leave cannabis in Seattle before heading to the mountains.
Military Installations
Washington has several major military installations. All are federal property where cannabis is strictly prohibited:
- Joint Base Lewis-McChord (JBLM) — between Tacoma and Olympia, one of the largest military installations on the West Coast. Tens of thousands of service members and their families.
- Naval Station Everett — north of Seattle, home to a carrier strike group and multiple surface combatants.
- NAS Whidbey Island — on Whidbey Island in Puget Sound, a major naval air station.
- Fairchild Air Force Base — near Spokane in eastern Washington.
Active-duty military personnel are subject to the Uniform Code of Military Justice (UCMJ), which prohibits cannabis use regardless of location or state law. Civilians on military property are subject to federal law.
Joint Base Lewis-McChord covers over 90,000 acres between Tacoma and Olympia along I-5. Visitors in the Tacoma-Olympia corridor should be aware of the base boundaries. Cannabis on JBLM is a federal offense. Do not attempt to bring cannabis onto the base for any reason.
Transportation: Air Travel
Do not fly with cannabis. TSA operates under federal authority at Seattle-Tacoma International Airport (SEA-TAC) and all other Washington airports. If TSA discovers cannabis during screening, they refer the matter to local law enforcement. Do not bring cannabis through airport security, even on flights within Washington State.
Use or dispose of your cannabis before heading to SEA-TAC or any other Washington airport. TSA operates under federal law. A federal drug issue at the airport is not worth the risk.
What Actually Happens If You Get Caught?
Federal law enforcement on Washington's public lands includes National Park Service rangers, U.S. Forest Service law enforcement officers, and military police. A first offense for simple possession on federal land is a Class B misdemeanor under 21 U.S.C. § 844:
- First offense: Up to 1 year imprisonment, minimum $1,000 fine
- Second offense: 15 days to 2 years imprisonment, minimum $2,500 fine
- Third+ offense: 90 days to 3 years imprisonment, minimum $5,000 fine
In practice, enforcement varies. Some rangers may issue a citation rather than arrest for small amounts. But federal enforcement is unpredictable, and a federal drug conviction on your record is far more consequential than the ~$50 state-level infraction for public consumption. It is not worth the risk.
The Bottom Line for Visitors
Enjoy cannabis legally at your lodging in Seattle, Tacoma, Spokane, or wherever you are staying. Leave it behind before entering any national park, national forest, or military base. When heading to Mt. Rainier, Olympic, North Cascades, or the mountains — leave your cannabis at home. Washington is worth the trip. Do not let a federal misdemeanor ruin it.
Cannabis is legal and abundant in Washington's cities and towns. The state's spectacular natural attractions are overwhelmingly on federal land where cannabis is illegal. The solution is simple: separate your cannabis activities from your outdoor adventures.
Official Sources
- 21 U.S.C. § 844 — Penalties for Simple Possession
- National Park Service — Washington Parks
- U.S. Forest Service — Pacific Northwest Region
- WSLCB Cannabis Program
For in-depth cannabis education, dosing guides, safety information, and research summaries, visit our partner site TryCannabis.org