Boulder trailhead parking and fees
Four different authorities charge for parking at Boulder trailheads, and one permit does not cover all of them. Here is the whole picture on one page.
Last checked: July 26, 2026
Boulder's trailhead parking is genuinely confusing, and not because anyone designed it badly. Four separate authorities run the lots: the City of Boulder's Open Space and Mountain Parks, Chautauqua's own metered system, Colorado Parks and Wildlife at Eldorado Canyon, and Boulder County at Betasso. Each charges differently, and buying one does not get you the others.
The single most expensive misunderstanding is assuming the $25 annual OSMP permit is a Boulder-wide pass. It is not.
Every trailhead, side by side
| Where | Fee | Who pays | Reservation | The catch |
|---|---|---|---|---|
| Chautauqua | Free weekdays; $2.50/hr on summer weekends | Everyone, regardless of plate | No | Its own paid system, separate from the OSMP permit. A permit does not cover it. |
| Flagstaff Road (six pay stations) | $5/day or $25/year | Vehicles NOT registered in Boulder County | No | Stations operate 5 a.m. to 9 p.m. A Boulder County plate parks free. |
| NCAR Mesa Lab | Free | Everyone | No | Free parking and free admission. No public transit up the mesa. |
| Centennial Trailhead (Mount Sanitas) | Not a listed OSMP fee location | Everyone | No | 31 spaces plus 2 ADA. Small, and it fills. |
| Eldorado Canyon State Park | $10 daily vehicle pass | Everyone | Yes, timed entry in season | State park, not city. There is NO public parking in the town of Eldorado Springs. |
| Betasso Preserve | Free | Everyone | No | Boulder County land, so OSMP's Voice and Sight dog tag does NOT apply here. |
| Boulder Reservoir | Seasonal entry fee | Everyone | No | Fees stop being charged in November. Dogs banned May 15 to Labor Day. |
| Downtown / Boulder Creek Path | Street and garage rates | Everyone | No | The creek path is the one major trail you can reach without a trailhead fee. |
The three ways to pay nothing
- Go on a weekday. Chautauqua's hourly charge applies on summer weekends only.
- Take the free summer shuttle, running May 23 through September 7, 2026.
- Start somewhere off the fee list. NCAR, Betasso and the Boulder Creek Path are free to park and free to enter.
The Chautauqua space-count problem
Worth knowing if you are planning around capacity: the City of Boulder publishes two different numbers for how many spaces the Chautauqua lot has. Its trailhead page says 48. Its own CC0 open-data GIS layer says 58. Neither is dated. We report both rather than guessing which is current, because for the most fought-over parking lot in the city, the fact that the record contradicts itself is the story.
Questions people actually ask
Do I have to pay to park at Boulder trailheads?
It depends on the plate and the lot. The City of Boulder's OSMP fee applies only to vehicles NOT registered in Boulder County, at $5 a day or $25 a year. Chautauqua runs its own separate system at $2.50 an hour on summer weekends and free on weekdays, and it charges everyone regardless of where the car is registered. Eldorado Canyon is a state park with its own $10 vehicle pass. NCAR and Betasso are free.
Does one Boulder parking permit cover everything?
No, and this is the most common expensive mistake. The $25 annual OSMP permit covers OSMP fee locations. It does not cover Chautauqua's hourly meters, it does not cover Eldorado Canyon, which is Colorado Parks and Wildlife, and it does not cover Betasso, which is Boulder County. Four separate authorities, four separate systems.
Can I avoid paying for parking in Boulder entirely?
Three ways, all legitimate. Go on a weekday, because Chautauqua is free Monday to Friday. Take the free summer shuttle, which runs May 23 through September 7, 2026. Or start somewhere that is not a fee location at all: NCAR, Betasso, and the Boulder Creek Path all cost nothing.
How many parking spaces does Chautauqua have?
The city cannot agree with itself. The City of Boulder's trailhead page says 48 spaces. The city's own CC0 open-data GIS layer says 58. Neither figure carries a date. For the most contested parking lot in Boulder, that is the honest state of the public record, so this guide reports the discrepancy rather than picking a side.
Do I need a reservation to hike in Boulder?
Only at Eldorado Canyon, which uses timed entry in season. Every other trailhead in this guide is first come, first served. That includes Chautauqua, which surprises people who assume the busiest trailhead must be reservable.
Keep exploring
Full trail comparisons with distances, elevation and dog rules are in the outdoors guide. If you are trying to keep the whole day free, the free things to do guide spells out every other hidden cost. Dog owners should also read the Boulder dog rulebook, because the off-leash rules change depending on which of these four authorities owns the land.