East Fork/Mosquito Flat Ski
East Fork/Mosquito Flat Ski Trail is a 4.7 miles snow trail in Inyo National Forest, California. The Forest Service rates it trail class 4, highly developed. It is open to snowshoeing and cross-country skiing.
Trail conditions, closures and hazards are not tracked here. The Inyo National Forest official page carries current alerts and closure orders.
Map
One end Other endLine simplified to about 100 metres. Basemap from the USGS National Map.
| One end | 37.4946, -118.7178 · Directions ↗ |
| Other end | 37.4357, -118.7468 · Directions ↗ |
The ends are the two ends of the longest connected chain of segments. The record does not say which is the usual start. The trail is recorded as 2 segments.
The trail
| Length | 4.7 miles |
| Trail class | 4, highly developed |
| Type | snow trail |
| Surface | snow |
| Typical grade | 0-5 percent |
| Motor vehicles | Closed to all motorized use year-round |
| Accessibility | Evaluated and does not meet accessibility guidelines |
| Trail numbers | 3020-SNO |
| Forest | Inyo National Forest (unit 0504) |
| States | California |
| Detail published | management level, with uses |
Values are the set across all segments. Class 1 is minimally developed and class 5 is fully developed. Grade and width are the forest's typical values, not measured extremes.
Weather by month
Allowed uses
| Snowshoeing | Allowed year-round |
| Cross-country skiing | Allowed 12/15 to 04/15 (month/day) |
A use is listed when the Forest Service records it as managed, accepted or discouraged on any segment. Discouraged still means legal. Uses marked restricted are left out. Where the forest publishes a Motor Vehicle Use Map, that map governs motorized use.
Trailheads
No season published · listed none | 0 mi |
Distance is from the point to the nearest part of the trail line. Season text is what the forest wrote and is often a season name rather than a date.
Camping nearby
Campsite Atlas cards carry site counts and booking links from Recreation.gov. Forest Service cards come from the recreation layer and link the agency page.
Fire nearby
- WildfireDome
49 mi from the trail midpoint · 1,177 acres · 10% contained
Distance is to the reported incident point, not the fire edge. Closure orders are on the forest's official page.
Explore
Reference
Questions people ask
How long is the East Fork/Mosquito Flat Ski Trail?
4.7 miles, the sum of the 2 segments the Forest Service records under this name in Inyo National Forest.
Source: Forest Service trail layer
What is allowed on the East Fork/Mosquito Flat Ski Trail?
snowshoeing and cross-country skiing. The trail is closed to motor vehicles year-round. Some uses are seasonal. The allowed uses section lists the dates.
Source: Forest Service trail layer
Where does the East Fork/Mosquito Flat Ski Trail start?
The line begins at 37.4946, -118.7178 and ends at 37.4357, -118.7468. The nearest recorded trailhead is Hilton Lakes Trailhead, 0 miles from the line. The record does not say which end is the usual start.
Source: Forest Service trail layer
Is the East Fork/Mosquito Flat Ski Trail in a wilderness area?
No. The trail line does not cross any polygon in the National Wilderness Preservation System layer.
Source: Wilderness Connect
Where can I camp near the East Fork/Mosquito Flat Ski Trail?
Mosquito Flat Backpacker Campground (0 mi), Upper Pine Grove Campground (0 mi) and Pine Grove Campground (0 mi) are within five miles of the trail. Site counts and booking links are on Campsite Atlas.
How developed is the East Fork/Mosquito Flat Ski Trail?
Trail class 4, which the Forest Service describes as highly developed. Class 1 is a minimal, unimproved route and class 5 is fully developed, often paved.
Source: Forest Service trail layer
How steep and how wide is the East Fork/Mosquito Flat Ski Trail?
The typical grade is 0-5 percent.
Source: Forest Service trail layer
Is the East Fork/Mosquito Flat Ski Trail accessible?
No. The Forest Service evaluated it and found it does not meet its accessibility guidelines.
Source: Forest Service trail layer
Who manages the East Fork/Mosquito Flat Ski Trail?
Inyo National Forest, Forest Service unit 0504. The trail is in California.
Is there a fire near the East Fork/Mosquito Flat Ski Trail?
1 active incident within 50 miles of the trail midpoint as of 2026-09-18, the nearest Dome at 49 miles. Check the forest's closure orders before you go.
Source: Fire nearby
Source
This page is built from 2 segments named EAST FORK/MOSQUITO FLAT SKI in the Forest Service TrailNFS_Publish layer, administrative unit 0504. Wilderness overlap is tested against the National Wilderness Preservation System layer from Wilderness Connect. Trailheads and Forest Service campgrounds come from the Forest Service Recreation Opportunities layer. Data refreshed September 17, 2026. The methodology page explains how segments become trails.