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Eldo Shuttle

Eldo Shuttle GraphicFree Summer Weekend
Hiker Shuttle

May 28-Sept. 5, 2022

Eldorado Canyon State Park (or "Eldo" to locals) is a hiking, fishing, picnicking and rock climbing heaven, just minutes from Boulder. However, parking is limited, and when it’s full, cars are turned away. Instead, take the free* summer weekend shuttle from Boulder to the park.

Pick up the shuttle from the University of Colorado Regent Lot (Broadway and Regent), or six other stops, and ride in comfort to the state park. The shuttle and shuttle parking are free; there is a fee to enter the state park.

By riding the Eldo Shuttle into Eldorado Canyon State Park, you get to bypass the weekend reservation system that was recently implemented and have guaranteed entrance to the park that day.

Now More South Boulder Trails, Too! In addition to Eldo State Park, the shuttle now services three city trailheads in South Boulder: Marshall MesaDoudy Draw and South Mesa trailheads.

*Park fee required for visiting Eldorado Canyon State Park. 

Insider Tip

Visitors who ride the Eldo Shuttle into Eldorado Canyon State Park don't need to make timed-entry reservations for the state park! Score!

How the Shuttle Works
  • Free
  • Runs May 28 through Sept. 5 2022
  • Approximately every 20 minutes
  • Saturdays and Sundays, 8am–7pm (May 30, July 4, and Sept 5)
  • Gear is welcome aboard:
    • Climbing gear, crash pads 
    • Leashed, well-behaved dogs
    • Strollers
    • Capacity for 3 bikes per shuttle
  • Approximately 25-minute ride
  • A valid state parks pass is required for those 16 and older to ride the shuttle. Bring your annual pass, purchase a day pass at or bring $4 exact cash. More info below.
  • Wondering when your bus is coming? See bus locations in real-time in the Transit app.
Shuttle Route and Stops

Eldo Shuttle Map 2022

Eldorado Canyon State Park Pass

A parks pass is required for all passengers 16 and older to ride the shuttle into Eldorado Canyon State Park. How to pay:

  • Bring your annual Colorado State Parks pass
  • Purchase a day pass prior to boarding at
  • Bring $4 cash per adult, exact change (if paying by credit card, will need to exit the shuttle at the Visitor Center)
  • National Parks Passes (America the Beautiful) are not valid for entry into Colorado State Parks
  • Kids 15 and under get in free
  • No fees or passes are required if visiting the city of Boulder's Marshall Mesa, Doudy Draw or South Mesa trailheads outside of the state park
Shuttle Stops and Parking Options

There are several stops along the shuttle route where you can catch the free shuttle. Some offer free* day parking.

Regent Drive & Broadway

  • Shuttle stop and parking in the CU Regent Lot #306, just east of Broadway

Broadway & Baseline

  • Shuttle stops on Broadway

Broadway & 27th Way

  • Shuttle stops on Broadway; parking available in the RTD Park-n-Ride.

Broadway & Rayleigh Rd

  • Shuttle stops on Broadway

Broadway & Dartmouth Avenue

  • Shuttle stops on Broadway; parking available in the RTD Park-n-Ride.

Broadway & Table Mesa Drive

  • Shuttle stops at the RTD stops on Broadway.

CO 93 & CO 170- Marshall Mesa Trailhead

  • Shuttle parking available in the dirt lot on the east side of CO 93.
  • No shuttle parking available in the Marshall Mesa Trailhead parking lot.
  • Shuttle stops in front of the gas station (no shuttle parking available in the gas station lot).

Doudy Draw Trailhead

  • Shuttle stops in the trailhead parking lot
  • To access to South Mesa Trailhead, visitors will need to cross CO 170
  • For westbound shuttles, the Doudy Draw stop is drop-off only

Eldorado Canyon State Park entrance station

  • Access to the Streamside trail.

Eldorado Canyon State Park Visitor Center

  • Access to Fowler, Rattlesnake, or Eldorado Canyon trails and the picnic area.
  • Access to Boulder County Walker Ranch Open Space via Eldorado Canyon Trail (no bikes on Eldorado Canyon Trail).

US 36 & McCaslin RTD Park-n-Ride in Superior

  • Shuttle stops at the Superior FlexRide stop in the parking lot next to the pedestrian bridge.
  • Parking is widely available here.

*If your car is registered outside of the RTD District and you park at an RTD Park-N-Ride, you will need to pay for parking.

More Hiker Shuttles

Did you know you can get to other popular trailheads via buses from Boulder? Ride for free (or nearly free) and avoid parking hassles.

Additional Tips
  • Don't Chance It, Ride the Shuttle Parking is extremely limited inside Eldo, and there is no parking available outside the park. When parking is full, you won’t be allowed in. Don’t chance it. Park at one of the lots and ride the shuttle instead.   
  • Bikes, Dogs and Gear Welcome Plus each bus has a bike rack that holds up to 3 bikes. 
  • McCaslin Park-N-Ride Tips To minimize transfer wait time, catch the McCaslin bus at the top of the hour (8:00, etc.). On your return from the park, the optimal time to catch the park bus is at the half hour (2:30, etc.)