http://www.frontrange4x4.com/forums/...rail-Directory - Consider Ours too - new but should be useful if/when people contribute
http://www.traildamage.com
http://www.colorado4x4.org - link to Trip Reports so you don't have to slog through the other stuff: http://www.colorado4x4.org/vbb/forumdisplay.php?f=19
http://www.4x4trails.net - Under Construction - no info available 08/03/2010
http://www.mhjcontherocks.com/community/trips - gone
http://www.bushducks.com/tripreps/passopen.htm