From Marblemount on Hwy-20, leave the highway at the main corner in town. This road goes east across a bridge. This is the beginning of Cascade River Road. At 9 miles from Marblemount, the Sibley Creek Road No. 1540 starts to the left and climbs up the drainage for about 4.7 miles to the Sibley Creek trailhead. Most people are able to drive up in a standard car.

Hidden Lake Peaks

Distance: 4 miles
Elevation Gain: 3,500 feet
Summit Elevation: 7,088 feet
Access rating: Level 2
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Route:
This is a very popular hike off the Cascade River Road just outside the national park boundary. It's one of the easiest peaks to reach that gives you views over all the rugged peaks in the area. There is also a 1931 lookout on the summit that makes for great pictures. But, the lookout is not on the highest point, look for point 7088 on the map and scramble up it for the highest point.
This is just a trail by mid July, before that be prepared for some steep snow crossings. The trail starts as an old road, goes up through forests, finally becoming meadows and views, views, views. A few minor trails break off the main route if you wanted to go to Sibley Pass, Hidden Lake or the highpoint. Most people just go to the lookout.
Access:
Washington Cimbing
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Mount Baker Hidden Lake trail Hidden Lake trail views Hidden Peaks true summit Eldorado and Forbidden Peak Forbidden Peak, Boston and Sahale Hidden Peaks Lookout Mount Baker Hidden Peaks Lookout Dog on the mountain Hidden Lake Peaks Lookout
Teebone Ridge Eldorado and Triad area Dozer the dog
View north to the Eldorado and Triad area
Northwest to the Teebone Ridge area
Hidden Peaks Lookout
Hidden Peaks Lookout
Hidden Lake with Forbidden Peak, Boston and Sahale Mountains in the distance
Hidden Peaks true summit, Eldorado and Forbidden Peak
Hidden Peaks true summit from Hidden Peak Lookout area
Views north on the trail
Mount Baker from the trail
On the trail
Mount Baker
He wanted to run down to the lake but it was just too far