Here's some of the resources used to plan Syncro Safari, Oregon '07.
Title: Oregon Byways
Author: Art Bernstein
Publisher: Wilderness Press
Type: Paperback with B&W photos
Includes: Only very mild “dirt roads”, not a 4-wheeling guide, but a scenic drive guide with both paved and unpaved roads. Part of “Tony Huegel’s Backcountry Byways Series”.
Title: Oregon Atlas & Gazetteer
Item: Large format, staple-bound book
Author: DeLorme Publishing
Publisher: Delorme Publishing
Type:Type: Large format atlas. 88 pages cover the entire state.
Includes: Index of place names, list of about 185 campgrounds, Info on National Forests / Parks / Recreation Areas, Info on BLM Lands, Info on State Parks / Recreation Areas, Unique Natural Features, Ski Areas, Paddle Trips, Scenic Drives, Biking info, River Trips, Hiking info, Fishing & Stream info, and Hunting info. While this is a great atlas for covering the entire state, it’s not detailed enough to be real help about any particular 4x4 trail.
Title: Street Atlas USA 2007
Item: PC & Palm Pilot Mapping Software
Publisher: DeLormeCopyright 2007
Type: Interactive mapping software covering the entire USA.
Includes GPS connection and capable routing functionality. Includes many dirt roads and trails.I’ve used the Delorme Street Atlas USA product since about version 3 in 1997, and they keep making it better