We've got them, but not in the profusion you see back east. The Portlanders can tell you about all the neat trails they have. They have a bunch.

Check out the Rails to Trails Conservancy map site at

<http://www.traillink.com/>

This is a great source for trail information. You can see photos and read reviews there of every trail I mention.

Done the Banks-Vernonia. Nice project. Paved with the exception of the Tophill Trestle segment. The wooden Buxton Trestle is a must do.
Done the Row River out of Cottage Grove. Great trail.
Done the Mosier Tunnels out of Hood River. You will love the tunnels.
Looked at the Klickitat across the river. Between fire closures and goat head thorns, gave it a pass. Not quite ready for prime time, which is a pity.

If you want to travel, try the Seattle area. Loads of trails there in Snohomish, King and Pierce counties. On my list for next season - the Foothills Trail and the John Wayne. Every time I get neat that trail, it brings on rain.

In Snohomish County is the delightful 16 mile Centennial Trail. Skagit County, where I live (in the summer, thank you) we have the Cascade. They need to whack the vines back.

If you have a week and want a serious Destination Trail - hop over to the Coeur d'Alene area and ride the 72 mile Trail of the Coeur d'Alenes and the Route of the Hiawatha. That is what I was doing in late September. What delights! I'm going back in 2010. You can check out the pix on traillink. Also in that area:

North Idaho Centennial Trail
Columbia Plateau Trail (Northern Section) (Get to Tri Cities - try the lower section on the Snake.)
Spokane River Centennial Trail
Old Milwaukee Road

Have fun with the trails...