Backbone Ridge Trail is a 4.8 mile out and back trail located near Packwood, WA that offers scenic views and is rated as moderate. The trail is primarily used for hiking and is accessible from June until October.
From Seattle, south on I-5 for 27.3 miles to exit 142A. East on WA-18 toward for 4.4 miles. Take the WA-164 E exit toward Enumclaw and go 0.2 mi to Auburn Way S/WA-164. Continue to follow WA-164 for 9.9 miles. Take a slight left at SE 436th St and travel 3.1 miles before taking a slight left at SE 440th St/Griffin Ave. Continue to follow Griffin Ave for 1.7 miles. Turn left at Roosevelt Ave and travel 1.5 miles. Continue on SE Enumclaw-Chinook Pass Rd/WA-410 for 39.3 miles (note: this road may be seasonally closed.) Slight right at WA-123 and travel 16.4 miles. Slight right at US-12 for 2.6 miles. Turn right at NF-1270 and go 2.6 miles to trailhead at the end of the road.