East Boulder Trail (White Rocks)

Trail Meter: 

White Rocks Trail is mostly a dirt doubletrack that winds through hills and is usually ridden in conjunction with the Heatherwood/Gunbarrel trail as an out and back of about 5 miles total. There are couple each of short climbs (and a somewhat bigger one to the water tank on the Gunbarrel Trail), curving rollers and straight, moderate downhills. Meadowlarks frequent the fence posts in the open plains here; their call can be heard over the wind blowing through the grasses. You may also spot an occasional coyote.

Beware of the White Rocks Trail in the spring! Snowmelt turns the soil into slimy, tire jamming mud. The trail is generally heavily rutted right after it dries out, so stick to summer and fall if you like your trail smoother. The trail trail ruts present the only real technical challenge on this trail.

There are three access points for the White Rocks Trail and associated Gunbarrel Farm Trail: the Heatherwood neighborhood in Gunbarrel, 95 Street, and Valmont Drive. These trails aren't so far from town, and provide a nice place to escape for a shorter ride. This is also a good place for riders looking for a mellow introduction to riding on dirt.

White Rocks.kmz4.22 KB
WhiteRocks.gpx33.61 KB
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T: 2 A: 3 C: 3

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2.2 mi.
160 ft.


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Trail Meter: Closed»Fair

Trail condition updated to Fair.

Deleting spam. Trail condition unknown

Trail Meter: Closed»Poor

Seasonal trail conditions exist. Please do not ride muddy trails.

Trail Meter: Fair»Closed

Due to repairs to the east dam at Ertl Pond (and the trail over the dam), the East Boulder White Rocks Trail is closed from Valmont Rd north to, and including, the Boulder Creek Bridge. Construction is expected to last two weeks, but is weather-dependent and may last longer.

East Boulder White Rocks Trail remains open as an out-and-back from East Boulder Gunbarrel Trail south to Boulder Creek. The Boulder Creek bridge remains closed due to flooding damage. Repairs on that project are expected later in 2016.

Trail closure information can be found at:

Trail Meter: Closed»Fair

Trail closed at Boulder Creek bridge because of flood damage. Trail in fair to good condition. The trail should be considered an out and back from either trail head.

OSMP closed trail as of June 16 due to flooding/high water conditions.

closed from Valmont Rd to West Phillips Rd due to high water, see https://bouldercolorado.gov/osmp/temporary-closures

Trail Meter: Poor»Closed

heavy rainfall closure by OSMP between N Teller Trailhead and Phillips Rd, see https://bouldercolorado.gov/osmp/temporary-closures

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