Jefferson Lake
Jefferson Lake in Washington has 9 climbing routes across 5 grades.
- 9 routes
- V2 – V7
- Bouldering
Is Jefferson Lake open right now?
Alert in the area
The National Park Service lists 3 alerts for Olympic National Park.
Bat Tests Positive for Rabies, Visitors Urged to Report Potential Contact
Park alert covering Olympic National Park · NPS · Olympic National Park
Full Burn Ban Begins August 7
Park alert covering Olympic National Park · NPS · Olympic National Park
Staircase Developed Area is Open, Use Caution in Burned Areas
Park alert covering Olympic National Park · NPS · Olympic National Park
As of · Source: NPS · Olympic National Park. Agencies don't list every closure — check before you go.
Best time to visit Jefferson Lake
Best months: April–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
46° / 32°
Feb
49° / 32°
Mar
54° / 35°
Apr
60° / 38°
May
67° / 44°
Jun
70° / 48°
Jul
77° / 52°
Aug
77° / 51°
Sep
72° / 47°
Oct
61° / 41°
Nov
50° / 35°
Dec
44° / 32°
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Quilcene 2 Sw, WA, 12.3 mi away at 123 ft. The station sits about 1,600 ft lower than this place, so expect it a little cooler here. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Jefferson Lake is a bouldering area in Olympic National Park, within the Daniel J. Evans Wilderness in western Washington. The National Park Service manages the land, and the area sits about 12 miles from Quilcene, the closest town. The climbing here is all bouldering, and the routes range from V2 to V7 on the V scale, with a median grade of V4. That makes it a destination for climbers who favor shorter, crag-style problems rather than multi-pitch routes. Olympic New Sit is the hardest of the named boulders at V7, and Top Out Cop Out is the easiest at V2. With nine routes in total, the area works well as a day of bouldering in the wilderness. Summer is the most comfortable time to go. A nearby weather station in Quilcene records typical July and August highs around 77°F with lows near 51°F, and the station sits well below the bouldering area, so temperatures at the crag run cooler. Winter is cold, with typical January highs around 46°F and lows near 32°F. Nearby, the Dosewallips Terrace Nature Trail and the Dosewallips River are both about a mile away. The Lake Constance Primitive Trail is a little farther, and Elkhorn Campground is roughly 3 miles off.
Routes (9)
3 Glazers Boulder(1)
Anchor Rock(3)
Cranium Boulder(1)
Olympic Boulder, The(2)
Roadside Boulder(2)
Facts about this crag
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