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blue Thunder Knob Trail

Trail

1.9 mile 3.0 kilometer point to point
Intermediate

Elevation

Ascent: 668' 204 m
Descent: -26' -8 m
High: 1,867' 569 m
Low: 1,222' 373 m

Grade

Avg Grade: 7% (4°)
Max Grade: 27% (15°)

Dogs

Leashed
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Trail shared by Joan Pendleton

This is a short trail through fir forests to a great viewpoint overlooking Diablo Lake with views of snowy mountains.

Joan Pendleton

Features Lake · River/Creek · Views

Family Friendly This is a short trail to great views that is probably best for older kids. Kids below about nine years old may find it too much of a struggle to be fun.

Description

There is a small Thunder Knob parking area at Diablo Lake on the north side of the highway. From here, you'll need to hike north through the campground to its far side to reach the Thunder Knob Trail.

The Thunder Knob Trail begins by almost immediately crossing Colonial Creek on a sturdy bridge. It then enters the fir forest and begins climbing gradually. The climb continues to the trail's end at the top of Thunder Knob. There are short sections of switchbacks in a few places on the climb, and occasional benches along the way to sit, rest, and enjoy the views.

As Thunder Knob Trail climbs, the views get better and better. One passes views of Diablo Lake and Thunder Creek Valley to the southeast, and Colonial Peak to the southwest, as the trail goes through thick fir forest. Eventually, the trees thin and get smaller as the trail nears the top of Thunder Knob, allowing more views in all directions.

From the top of Thunder Knob one can see turquoise Diablo Lake far below and snowy peaks in all directions. Diablo Lake is fed by Thunder Creek, with its glacier and snowmelt sources high in the mountains. More benches at the top of Thunder Knob give one a chance to linger, rest, and enjoy the views.

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Check-Ins

Jun 24, 2019
Jason Castle
3.8mi
Jun 7, 2019
Dan Wyssmann
Jun 1, 2019
Eric Longstaff
Very sunny. 3.4mi — 1h 39m
May 30, 2019
Thatcher Banh
May 25, 2019
E M
1.9mi
May 4, 2019
Joseph Gile
1.9mi
Feb 10, 2019
Hali Brewer
absolutely beautiful when snow coverd
Oct 11, 2018
Kara Paolisso
Nice views of HWY 20 and Lake Diablo. 1.9mi

Trail Ratings

  4.1 from 10 votes

#5473

Overall
  4.1 from 10 votes
5 Star
30%
4 Star
50%
3 Star
20%
2 Star
0%
1 Star
0%
Rankings

#245

in Washington

#5,473

Overall
80 Views Last Month
1,128 Since Nov 10, 2016
Intermediate Intermediate

0%
27%
64%
0%
9%
0%

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