Cannabis in Cheyenne, Wyoming & F.E. Warren AFB

Last verified: May 2026

Cheyenne — State Capital and Cross-Border Hub

Cheyenne is Wyoming’s state capital and largest city, with a 2024 population estimate of approximately 65,000. The city sits in Laramie County (population ~100,000) at the southeastern corner of Wyoming, only ~8 miles north of the Colorado state line. The I-25 corridor runs north-south through Cheyenne; I-80 runs east-west. The interchange at Cheyenne is one of the highest-volume traffic nodes in the Mountain West.

F.E. Warren Air Force Base

F.E. Warren AFB is among the oldest continuously active military installations in the United States, established in 1867 as Fort D.A. Russell. The base hosts the 90th Missile Wing, one of three Air Force Global Strike Command wings operating the Minuteman III intercontinental ballistic missile (ICBM) system. The 90 MW operates 150 ICBMs distributed across silos in southeastern Wyoming, western Nebraska, and northern Colorado.

The $141 Billion Sentinel Program

The Sentinel ICBM program (formerly Ground Based Strategic Deterrent or GBSD) is the U.S. Air Force’s effort to replace the Minuteman III system with a next-generation ICBM. F.E. Warren AFB is a principal site for Sentinel deployment. Program total estimated cost has grown from initial estimates of ~$95 billion to ~$141 billion as of mid-2025 reporting, with further cost growth probable. The program brings sustained federal-contractor activity, security-clearance hiring, and DOD-controlled-facilities employment to the Cheyenne metro area.

Federal-Employee & Security-Clearance Cannabis Exposure

Cannabis remains a Schedule I substance under federal law (pending DEA Schedule III rescheduling). Federal-employee and security-clearance cannabis exposure includes:

• Active-duty Air Force personnel: Article 112a UCMJ prohibits any cannabis use, including in legal-rec states; positive drug test produces administrative or court-martial action.
• DOD civilians and contractors: federal-workplace drug-free policies under Executive Order 12564 require cannabis abstention; positive test produces termination.
• Security-clearance holders: SF-86 questionnaire requires disclosure of cannabis use; cannabis use within prior period (typically 1–7 years depending on clearance level) is grounds for clearance denial or revocation.
• Federal-grant employees: drug-free workplace requirements often extend to federal-grant-funded positions in healthcare, research, and education.

The federal-cannabis exposure is independent of Wyoming state-law exposure and persists even if Wyoming someday legalizes.

Wyoming Highway Patrol Headquarters — 5300 Bishop Boulevard

Wyoming Highway Patrol’s administrative headquarters is at 5300 Bishop Boulevard in Cheyenne. The agency operates 12 K-9 units (10 narcotic-detection certified) and conducts active interdiction along I-25 and I-80. The 8-mile I-25 stretch from the Colorado state line to the Cheyenne city limits is the most heavily-patrolled cannabis-interdiction corridor in Wyoming. The 2016 Laramie County weekend deployment (313 lbs marijuana, 25 felonies, 26 misdemeanors over 400 stops) operated principally on this corridor. See WHP interdiction page.

Cheyenne Frontier Days (Late July)

Cheyenne Frontier Days is the world’s largest outdoor rodeo, held annually the last full week of July at Frontier Park. The event draws 250,000+ attendees over 10 days, including out-of-state visitors from cannabis-legal jurisdictions. WHP enforcement intensifies during the event, particularly along I-25 and I-80 entry routes.

Laramie County Sheriff’s Office

Laramie County Sheriff’s Office handles county-level enforcement and operates within the Cheyenne metro area outside city limits. Cheyenne Police Department handles in-city enforcement. Both agencies cooperate with WHP on cross-border-interdiction operations.

Federal Court — District of Wyoming, Cheyenne Division

The U.S. District Court for the District of Wyoming’s Cheyenne division handles federal cannabis-trafficking prosecutions. Federal prosecutions typically involve quantities or distribution patterns above U.S. Attorney charging thresholds; small personal-use cross-border-transport cases more commonly route through Wyoming state court (Laramie County District Court).

The Cheyenne Cannabis Reality

Cheyenne sits at the intersection of WY full prohibition (state law), heavy WHP cross-border-interdiction (I-25/I-80), and high federal-employer concentration (F.E. Warren, federal contractors, BNSF). The combined exposure stack means Cheyenne residents face above-average cannabis-policy exposure even by Wyoming’s already-restrictive standards. The 100-mile drive to Denver is a familiar route for many Cheyenne adults but carries the layered federal felony + WY state felony + WY internal-possession + WY OWI + civil-asset-forfeiture risks documented elsewhere on this site.

Related on this site: Cannabis in Casper & Laramie Wyoming, Cannabis in Jackson, Send a Message.