Drive State Highway 542 east from Bellingham to Glacier, then another 13.5 miles to some highway maintenance sheds. The sheds are just past mile marker 46, turn left on Twin Lakes Road and drive it for 4.5 miles. The Yellow Aster Butte trailhead will be obvious as you pass.

Mount Baker Highway - Washington Hiking & Climbing

Access:

Distance: 5 miles
Elevation Gain: 5,000+ feet
Summit Elevation: 7,451 feet & 6,241 feet
Access: Good Gravel Road

The Route:

You're going to love this hike and climb. The alpine area is reached fairly quickly, the views of nearby peaks are incredible and the summit area looks technical but isn't. Tomyhoi is just south of the U.S.- Canada border, in the scenic area north of Mt. Baker and Mt. Shuksan. The meadows and lakes below the summit make for some good camping. Nearby Yellow Aster Butte is a quick and easy side trip for others in the party not wanting to do Tomyhoi Peak.

Mt. Baker Highway

Home

American Border Peak

American Border and Canadian Border Peaks

American Border and Mt. Larabee

Mt. Shuksan

Route goes up center draw

The final rock climb

Ridge trail

Looking down the class 3 route, that's my stashed gear about 20 feet down

My climbing partner is into Extreme Ironing (google it!)

Hike up the Yellow Aster Butte Trail to the small lakes west of Yellow Aster Butte. Continue north on a trail that gains the main ridgeline going north, northwest. This trail route will take you up and over a few bumps. Around 7,200 feet on the east side of the summit rocks, you'll need to do some steeper climbing up a draw to reach the summit ridge. Once on top, a western traverse will get you to the final summit rock. This is a steep class 3 rock scramble but with good holds. See pictures for best route.

A perfect evening

My dog went down there to cool off

On the ridge

American Border and Mt. Larabee

Climbing the rocks

Small lakes west of Yellow Aster Butte

Tomyhoi from Yellow Aster Butte

Looking at the route below the summit rocks