USFS Roads

I use my nuvi with City Navigator (also Garmin's Topo USA and a free Arizona topo map) on Forest Roads quite often and am amazed at how well they work. When issues arise, I don't know that I'd say it's due to maps being out of date as much as it is that they're incomplete. But then, even the most recent paper USDA Forest Service maps are equally as imcomplete for the Forests I travel through. All in all, use caution when travelling these roads, but for me, the addition of the GPS maps is an asset when travelling in new areas of my forests.

My issue is that the roads shown are no longer usable for a number of reasons. The map info shows roads that were good years ago.
I guess that the mapping system seldom gets reports that the roads are no longer there! Maybe Navtech does not use USFS maps to show the roads on the City Navigator highway version.
The TOPO version would be more applicable and probably more accurate.

I've used my Nuvi 255W on the NF roads in AZ. It works great so far. I wasn't expecting it show all of the roads. I tested it out a few weeks ago along with my Oregon 300 and it indicated all of the forest service roads I drove on and showed the turnoffs to others as I passed them. In some cases some roads showed up on the Nuvi and not the Oregon....???

I've used the Michigan USFS roads a couple of times, the GPS has even routed me on them when I hit detour, must to my wives displeasure.