Mosquito Lakes Trailhead

Area Status: Open

The Mosquito Lakes Trailhead can be used to access Heiser Lake and Bull Run Lake. From Bull Run Lake, the trail continues to the Stanislaus Meadow Trailhead parking area.

Shortly after the trailhead, the Emigrant/Mokelumne Coast to Crest Trail (MCCT) branches off to the right and a short distance later the Mosquito Lakes to Pacific Valley/MCCT Trail branches off to the left. The Mosquito Lakes to Pacific Valley portion of the MCCT was completed in 2015; since it is a new trail, it may not be shown on some maps. As of September 2020, the map on this web page did not show the trail; however, trailhead symbols show the beginning and ending points. Please visit the Mokelumne Coast to Crest Trail website for more information and a map.

Lat/Long: 38.515315, -119.914940

At a Glance

Current Conditions: Calaveras Ranger District (HWY 4)
Permit Info: A Wilderness Permit is required for overnight visits to the Carson-Iceberg Wilderness.
Best Season: Summer
Busiest Season: Summer
Restrictions: Please take a moment to read the Wilderness Regulations.
Water: No potable water. Filter or boil all lake and stream water.
Restroom: Vault toilet across the highway at Mosquito Lakes Campground
Operated By: US Forest Service

General Information


From the Calaveras Ranger District head east on Highway 4 for about 40 miles. The trail begins on the southwestern tip of Mosquito Lakes.

General Notes:

Please read the information about Traveling in Bear Country.


Parking is located on either the right or left side of the highway. Accessible to all highway-legal vehicles, right off the highway, native surface parking area.

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8068 - 8068