Facility Overview

The Cabin John Trailhead Parking Lot on Bradley Boulevard serves as an essential nature staging ground and public access point for the Cabin John Stream Valley Park and Cabin John Regional Park network in Potomac, Maryland. Situated along Maryland State Route 191 (Bradley Boulevard) between Seven Locks Road and Kentsdale Drive, this facility is an open-air surface parking area embedded in a mature wooded greenway. Because it operates as a standard grade-level surface lot without overhead barriers, height restrictions, or garage canopies, the lot provides unobstructed vertical clearance. It easily accommodates full-size SUVs, crew-cab pickup trucks, family crossovers, and passenger vans equipped with rooftop bike racks or cargo carriers. The compact asphalt layout offers direct foot-path access connecting drivers within seconds to miles of forested trails along Cabin John Creek.

Prime Location & Nearby Attractions

Conveniently located in affluent southern Montgomery County, this parking area sits at the vital midpoint of the 8.8-mile Cabin John Stream Valley Trail. It provides immediate outdoor recreation access as well as quick transit to upscale commercial and cultural hubs across Potomac and Bethesda:

• Cabin John Trail & Stream Valley: Step directly from your vehicle onto singletrack natural surface hiking and trail running routes following Cabin John Creek.
• Cabin John Regional Park Core (approx. 5–7 minutes drive / 2.5 miles): Home to the Cabin John Ice Rink, Pauline Betz Addie Tennis Center, Locust Grove Nature Center, miniature train rides, athletic fields, and reservable picnic shelters.
• Cabin John Village (approx. 4–5 minutes drive / 1.8 miles): A bustling lifestyle center at Tuckerman Lane and Seven Locks Road offering premier dining, artisanal coffee, boutique shopping, and everyday retail.
• Congressional Country Club & Falls Road Golf Course (approx. 4–6 minutes drive): World-renowned championship golf fairways and recreational greens situated nearby along River Road and Bradley Boulevard.
• Westfield Montgomery Mall (approx. 8 minutes drive): A major regional destination featuring high-end department stores, boutique shops, dining terraces, and an AMC multiplex cinema.
• C&O Canal National Historical Park & Great Falls Tavern (approx. 10–12 minutes drive): Iconic Potomac River towpaths, dramatic waterfalls, and historic canal locks.

Access, Navigation & Transit Connectivity

Ingress and egress are straightforward via Bradley Boulevard (MD-191), a well-traveled two-lane arterial connecting downtown Bethesda with the heart of Potomac Village. Drivers should look for the brown-and-white Montgomery Parks directional signage indicating the Cabin John Trail crossing. The lot connects seamlessly with other key thoroughfares, including Seven Locks Road to the west and River Road (MD-190) and the Capital Beltway (I-495, Exits 39 and 36) to the south and east. Interstate 270 is also accessible within a 10-minute drive via Democracy Boulevard. For transit riders, Montgomery County Ride On Bus routes operate along major crossing corridors such as Bradley Boulevard (Route 36) and nearby Seven Locks Road, providing local feeder service to the Bethesda (Red Line) and Grosvenor-Strathmore Metro stations.

Facility Amenities & Key Features

• Free Public Park Parking: Managed by Montgomery Parks (M-NCPPC) with no meter fees, pay stations, or reservations required.
• Direct Trailhead Gateway: Immediate foot connection to both northern and southern segments of the Cabin John Trail for hikers, trail runners, and mountain bikers.
• Open-Air Headroom: Fully open layout without overhead clearance bars, suitable for elevated overland vehicles, bike racks, and high-profile roof boxes.
• Sanitation Facilities: Seasonal portable restroom stationed on-site for trail visitors and athletes.
• Paved Hard Surface: Marked parking bays framed by natural perimeter timbers and shaded woodland canopy.

Ideal For

• Hikers, Runners, and Dog Walkers: Outdoor enthusiasts looking to explore the natural contours and scenic bridges along Cabin John Creek.
• Mountain Bikers: Cyclists staging for technical singletrack and flow sections between River Road and Democracy Boulevard.
• Local Commuters & Carpoolers: Drivers coordinating rideshare or hiking meetups near the I-495 / River Road commuter corridor.
• Nature Photographers & Birdwatchers: Visitors exploring diverse riparian wildlife and spring wildflowers in Montgomery County's preserved parklands.

Visitor & Driver Tips

Because the Bradley Boulevard trailhead lot has a modest footprint, spaces can fill up rapidly on temperate weekend mornings and pleasant late afternoons. Plan to arrive early before 9:00 AM or in the mid-afternoon to easily claim an open bay. If the lot is full, alternative regional park lots with higher capacity can be found further north at the Cabin John Indoor Tennis Center on Democracy Boulevard or the main park entrance along Tuckerman Lane. When exiting back onto Bradley Boulevard, exercise caution as approaching vehicle traffic moves at steady 35–45 mph speeds along curving, tree-lined sightlines. Lock your car and store all backpacks and valuables out of sight to ensure a worry-free hike in the park.