Trinity Alps Traverse
Klamath Mountains, CA
Elevation Profile
Current Conditions
Bottom Line
Classic Trinity Alps weather window — sunny 60s with light winds all three days. Stream crossings are straightforward with flows running 40-90% of normal.
66°/45°F · Mostly Sunny
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45" depth
Normal flows · 5 gauges
No active fires within 50 miles
11h 55m daylight · Sunrise 7:24 AM · Sunset 7:18 PM
Full Briefing
You've caught a perfect March weather pattern for the Trinity Alps Traverse. Three consecutive days of sunny skies, highs in the mid-60s, and light northwest winds under 15 mph. Overnight lows in the mid-40s mean comfortable sleeping and no frost concerns. This stable high-pressure system gives you zero precipitation risk through Tuesday.
Water crossings are in great shape. Five regional gauges show flows between 41-88% of median — well below the seasonal peak and falling or stable on all stations. The San Antonio River near Lockwood is running just 84 cfs at 41% of median, which means even the larger Trinity Alps creek crossings will be routine rock-hops or easy fords. With overnight lows staying in the 40s, there's minimal overnight snowmelt contribution to afternoon flow increases.
Snowpack data from surrounding stations shows typical March conditions with depths ranging from 10 inches at lower elevations to 92 inches at higher monitoring sites. Snow depths are falling across all stations, indicating normal spring settlement rather than rapid melt. The 6,000-foot Annie Springs station shows 33 inches with a stable trend, suggesting snow will be present on north-facing slopes above 5,000 feet but won't impede travel on most Trinity Alps trails.
Plan your days for the full weather window — with nearly 12 hours of daylight and stable conditions, you can cover good miles without weather pressure. Start early to take advantage of cool morning temperatures for the bigger climbs, and enjoy extended golden hour light for camp setup around 6:30 PM each evening.
Waypoints
Stuart Fork Trailhead
Begin at the Stuart Fork trailhead. Forested approach along the creek.
3,501 ft
Emerald Lake
Beautiful emerald-green lake in a granite cirque. Excellent camping.
6,299 ft
Caribou Lakes Basin
High basin with multiple lakes. Alpine wildflowers in July.
8,301 ft
Coffee Creek Trailhead
Exit at Coffee Creek. Arrange a shuttle back to start.
4,003 ft
Route Details
Distance
35.0 mi
Elevation Gain
10,000 ft
Elevation Loss
10,499 ft
Max Elevation
8,301 ft
Estimated Days
4
Trailhead
Stuart Fork Trailhead
Best Season
June through October. Hot in midsummer; September is ideal.
About This Route
The Trinity Alps in far northern California are one of the state's best-kept backpacking secrets. This traverse through the Trinity Alps Wilderness passes through granite peaks, alpine lakes, and dense old-growth forests with a fraction of the crowds found in the Sierra Nevada. The route connects several trail systems to create a north-south traverse through the heart of the wilderness, passing pristine lakes including Caribou, Emerald, and Sapphire. The terrain has an alpine character similar to the Swiss Alps at a fraction of the elevation, with green meadows, glacier-carved cirques, and rushing streams. The Trinity Alps see far less traffic than comparable California wilderness areas. Permits are free and self-issued at trailheads. Black bears are present—hang food or use canisters. Water quality is excellent from the many streams and lakes. The area is hot in midsummer; consider September for cooler temps and fall color.
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