Free Shuttle Bus Service
Boulder County, Colorado Parks & Wildlife, and the City of Boulder are offering a FREE shuttle bus service on weekends and holidays during the summer and fall to carry passengers from US 36 & McCaslin and from Boulder to Eldorado Canyon State Park and the Marshall Mesa, Doudy Draw, and South Mesa trailheads, popular hiking, sightseeing, climbing, and biking destinations south of Boulder and the Eldorado Springs Pool. The shuttle, operated by Via Mobility Services, helps address increased parking and traffic congestion-related impacts in Eldorado Springs, within the state park which connects to Walker Ranch, and along CO 170.
Schedule
View or download a map of the Eldo Shuttle to Eldorado Canyon State Park including Marshall Mesa, Doudy Draw and South Mesa Trailheads and Eldorado Springs Pool:
2025 Eldo Shuttle Schedule
- The Eldo Shuttle runs Saturdays, Sundays, and holidays from May 24 to Sept. 14.
- The Eldo Shuttle operates on the following holidays: Memorial Day (May 26), Independence Day (July 4) and Labor Day (Sept. 1). There is no shuttle service on Juneteenth (June 19) or Colorado Day (Aug. 4).
- The Eldo Shuttle runs every 20 minutes, 8 a.m. to 7 p.m. each day of service from May 24 to Sept. 1, and every 30 minutes each day of service from Sept. 6 to Sept. 14.
Track Your Bus in Real Time
Track your bus’s arrival time and location in real-time using Transit App, available for iOS and Android. Look for the Eldorado Park route.
State Parks Pass
All shuttle passengers will be required to have a valid state parks pass to ride the shuttle into the state park. Shuttle riders can bring an annual pass, purchase a day pass online on the Colorado Parks and Wildlife page, or bring $4 cash per adult (exact change). If paying by credit card, shuttle riders will need to exit the shuttle at the Visitor Center at the end of the route. No passes or fees are required to ride to the Marshall Mesa, Doudy Draw, South Mesa trailheads or the Eldorado Springs Resort.
If you have an annual pass or purchased the Keep Colorado Wild pass as part of your vehicle registration, it covers the entrance fee for the passholder and up to three other adults who are riding the shuttle with you into the State Park. If you purchased the Keep Colorado Wild pass, either bring your vehicle registration or a photo of it.
Timed Entry Reservations are Not Required
Timed entry reservations are not required for shuttle parking or to ride the Shuttle, including to visit Eldorado Canyon State Park.
Accessible Hiking:
- All shuttles and shuttle stops are ADA accessible.
- The Eldo Shuttle provides access to the Fowler Trail, a wheelchair accessible trail.
Outdoor Gear and Pets
- Crashpads and other climbing gear are welcome.
- Leashed, well-behaved dogs are welcome.
- Each shuttle has a bike rack that can hold two bikes.
Take the Bus to the Shuttle!
Rather than driving directly to the state park or one of the shuttle parking lots, visitors are encouraged to take RTD to the Shuttle. In Boulder, use the SKIP, DASH, 225, 204, Flatiron Flyer or any other RTD bus route that stops along Broadway to connect to the Eldo Shuttle. To access the Shuttle at US 36 & McCaslin, use the Flatiron Flyer, AB, 228 or Louisville/Superior FlexRides.
Parking is extremely limited inside Eldorado Canyon State Park, and there is no public parking nearby outside of the park. Saturdays, Sundays, and Holidays from May 1 to Oct. 1, a timed entry reservation is required to drive into Eldorado Canyon State Park. Illegal parking could result in fines and/or towed vehicles.
Additional Recreation Shuttles
Find out more information about all of the recreation shuttles operating in Boulder County on the Boulder County Recreational Shuttles page.