Facility Overview

The Doudy Draw Trailhead Parking Lot is a dedicated outdoor recreation parking area managed by the City of Boulder Open Space and Mountain Parks (OSMP). Situated along the south side of Eldorado Springs Drive (Colorado State Highway 170) just southwest of Boulder, this open-air, level-grade gravel surface lot provides critical staging and vehicle parking for outdoor enthusiasts accessing the southern Flatirons trail system. The facility features approximately 45 marked stalls, configured with 40 standard vehicle parking spaces, 2 designated Americans with Disabilities Act (ADA) accessible spaces, and 3 elongated, pull-through stalls specifically engineered for equestrian horse trailers and oversized adventure rigs. Because the facility is entirely open-sky with no overhead structures, overhangs, or canopies, it offers unobstructed vertical clearance, making it fully accommodating for high-roof camper vans, lifted pickup trucks, overland four-wheel drives, roof-rack-equipped SUVs, and utility vehicles.

Prime Location & Nearby Attractions

Located in the scenic transition zone where the Colorado plains meet the dramatic sandstone ridges of the southern Front Range, this parking lot serves as a primary access hub for diverse recreation:

• Doudy Draw & Spring Brook Trails: Departing right from the edge of the parking lot, the Doudy Draw Trail offers immediate walking, trail running, and mountain biking access across South Boulder Creek tributaries toward Spring Brook Loop (1.5 to 5.4 miles of connected backcountry loops).
• Community Ditch & Flatirons Vista: Intersecting just 0.5 miles south of the lot, these trails link east toward Highway 93, the Flatirons Vista Trailhead (1.8 miles east), and the High Plains trail system.
• South Mesa Trailhead: Located directly across Eldorado Springs Drive to the north (less than a 3-minute walk), offering trailheads to the Mesa Trail, Towhee Trail, and Shadow Canyon leading to South Boulder Peak.
• Eldorado Canyon State Park: Positioned only 1.8 miles west along Highway 170, home to world-renowned rock climbing walls (The Bastille, Redgarden Wall), hiking routes, and picnic corridors along South Boulder Creek.
• Historic Eldorado Springs: Located roughly 1.5 miles west, famous for its historic artesian resort pool and mineral water springs.
• Downtown Boulder & University of Colorado Boulder: Situated approximately 6.5 miles due north (a 10- to 12-minute drive via Highway 93 / Broadway).

Access, Navigation & Transit Connectivity

Ingress and egress are straightforward via a wide curb cut located on the south shoulder of Eldorado Springs Drive (CO-170), roughly 1.8 miles west of its junction with Colorado State Highway 93. Highway 93 serves as the primary regional arterial linking Boulder directly to Golden, Arvada, and the Denver metropolitan area. Regional drivers coming from Denver or US-36 can exit at McCaslin Boulevard in Superior and proceed west along CO-170 directly to the lot. Exiting traffic turns smoothly onto CO-170, though drivers should exercise heightened caution during weekend morning and afternoon rush periods due to heavy road-cycling traffic along the Highway 170 shoulders. While public fixed-route buses do not stop at the trailhead gate, seasonal Eldo Shuttle services operated during summer weekends connect nearby regional transit hubs directly to Eldorado Canyon State Park, and RTD regional bus lines operate along US-36 and in central Boulder.

Facility Amenities & Key Features

• Open-Air Surface Parking: Level, well-graded crushed gravel and packed soil lot with painted bumper stops and clear directional layouts.
• Equestrian & Oversized Spaces: 3 pull-through elongated stalls reserved for horse trailers and long trail vehicles.
• ADA Accessibility: 2 designated accessible parking spaces adjacent to the trail entry gate with a crusher-fines pathway suitable for mobility devices.
• Digital Payment Convenience: Seamless fee management via the ParkMobile app (Zone #24100) alongside cashless on-site automated pay kiosks.
• Live Trailhead Webcams: Real-time parking availability monitoring provided online through the City of Boulder OSMP trailhead camera portal.
• Restroom & Trail Amenities: Informational kiosk, trail map boards, dog-waste bag dispensers, and trash receptacles at the lot entrance, with permanent vault restrooms located 0.3 miles down the trail at the picnic grove.
• No Clearance Restrictions: Open-sky layout accommodates roof-top tents, bike racks, kayak carriers, and tall vehicles.

Ideal For

• Hikers & Trail Runners: Exploring the rolling foothills, wildflower meadows, and scenic loops of Doudy Draw and Spring Brook.
• Mountain Bikers: Riders connecting via Community Ditch Trail to Flatirons Vista, Greenbelt Plateau, and Marshall Mesa singletrack networks.
• Equestrian Riders: Horseback enthusiasts taking advantage of designated trailer turnaround stalls and multi-use bridle paths.
• Wildlife Watchers & Photographers: Birders scouting raptors along Goshawk Ridge and visitors capturing unobstructed golden-hour views of the Flatirons.
• Climbers & State Park Visitors: Outdoor adventurers seeking convenient overflow and perimeter access near the Eldorado Springs corridor.

Visitor & Driver Tips

Parking regulations are strictly enforced by City of Boulder Open Space rangers. Motor vehicles registered in Boulder County park for free with no permit required; however, all vehicles registered outside Boulder County must purchase a $5 daily parking permit via the ParkMobile smartphone app (Zone 24100) or at the trailhead kiosk. Purchasing a pass in advance does not guarantee a space. Because this lot contains only about 40 standard spaces, it frequently reaches 100% capacity by 7:30 AM to 8:30 AM on sunny spring, summer, and autumn weekends. Check the City of Boulder OSMP live trailhead webcam before departing to confirm stall availability. Parking along the paved shoulders of Highway 170 is strictly prohibited and subject to immediate citation and towing. Note that trail closures can occur following heavy rain or snowmelt to prevent trail erosion; consult the OSMP muddy trail status page before visiting.