Sam Haraldson thru hiked the lesser known Pacific Northwest Trail. (trip report)
On June 21st, 2007 I begin walking at Glacier National Park with intent to move westward roughly 1200 miles reaching my goal of the Pacific Ocean in late August or early September.
On August 20th, 2007 I reached that goal with a lightness in my step and a smile upon my face. Sixty-one glorious days of backpacking through the highlands and lowlands of the Pacific Northwest were an enlightening time for me both physically and mentally.
samh.net – Ultralight Backpacking, Wilderness Trekking, Outdoor Adventure
trip photos – Picasa
The official guidebook for Long Distance and Day Hikers by Ron Strickland:
o Detailed route descriptions of 44 trail segments
o USGS topographic maps
o Mileage charts for at-a-glance planning
o Resource lists for maps and supplies
o Details for mountain bikers and horse-packers
o Information on planning a long-distance trip
o 50 black and white photographs
o Pullout display map of 1200 mile trail
(via the new look Two-Heel Drive)
besthike.com 
I have hiked sections of this trail, I lived nearly on it for almost 30 years. Do this hike like Sam did, June – August. It’s so worth it!