Anderson Mountain

It's known to peak baggers as a "dumpster dive" and a " Napoleon," because of its over 3,000-foot prominence and low elevation. It's a good winter training hike of 5 to 12 miles, all with 3,000 feet of elevation gain, in the Alger Alps near Bellingham and just north of Mount Vernon and Sedro-Woolley.

Getting there

North side

Drive SR-9 10.7 miles north from Sedro-Woolley and turn left onto Park Road. Follow Park Road for ~2.6 miles and turn left onto South Bay Road. The trailhead in is ~0.25 mile on the left.

South side

Take Exit 236 off of I-5 and drive east on Bow Hill Road. Turn left onto US-99, drive north ~2.5 miles, and turn right onto Parsons Creek Road.  Take the second left onto Skaarup/Alger Mountain Road and drive 0.8 mile to the trailhead on the left or continue up Alger Hill Road. Park at the trailhead or nearby making sure to not block the road.

East side

Drive SR-9 7.1 miles north from Sedro-Woolley. Look for an unsigned gravel logging road on the left side of the road. Park outside of the gate and do not block the gate.

On the Trail

Hike 5-12 miles with 3,000 feet of elevation gain to the summit of Anderson Mountain. Hikes can start from the north, south, or east sides. The Pacific Northwest Trail (PNT) crosses Anderson Mountain but most of the routes are on logging roads and are best done in winter when everything higher is snow-covered. The north approach is shortest and all on trail. 

North side

5-6 miles round trip with  3,000 feet of elevation gain

This is the all-trail route to the top but is on a north facing slope.

South side

12-13 miles round trip with 3,000 feet of elevation gain

Follow Alger Mountain road and a network of roads up the south/southwest slopes.

East side

11-12 miles round trip with 3,000 feet of elevation gain

Follow logging roads and bits of PNT towards the summit of Anderson. Three are no views from the treed-in summit, but there are views from various places on the way  up.


  • With the mish-mash of old logging roads, new logging roads, and bits of the PNT, careful navigation is required and  a GPS is recommended.
  • Length: 12.0 mi
  • Elevation Gain: 3,000 ft
  • 3,664 ft
  • Land Manager: Skagit County
  • Parking Permit Required: None
  • Recommended Party Size: 8
  • Maximum Party Size: 12
  • Maximum Route/Place Capacity: 12
  • USGS Sedro-Woolley North
  • USGS Alger
  • USGS Lake Whatcom
  • USGS Acme

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