The Fremont Rim is an overland trail that I have put together from existing roads that follows the rim or drainage divide of the Great Basin for 4883 miles 7858 km.  I arbitrarily chose Oregon for my start but it is a closed loop.  Through the states of Oregon, California, Nevada, Utah, Wyoming and Idaho, and from sea level to almost 11,000 feet altitude the route is 70% on remote dirt roads.  Most of the paved portions are in southern California and Nevada. There are a number of times that the trail is over one hundred miles from the nearest gas.  There are a number of areas that are impassable when wet and the portion that crosses Utah's Skyline Drive Road is only clear of snow from late July to early October.  I believe the technical challenges are not very extreme and an SUV should have no problem.  I will be taking a motorcycle with a sidecar, 1wd.  (Emphasis on "should")

The Fremont Rim trail was entirely drawn with Google Earth Pro which is available for free HERE .  I save all my road segments as .kml files but they can be converted to .gpx files for most gps units HERE.  The image atlas photos are simply screen shots that I made from within GE.  They are not too big and I can fit them all on my aging Motorola G+ phone.  These alone in combination with paper maps (I usually have Benchmark books with me) I think are enough to navigate the entire route. 

What's enough?  I do not use turn by turn navigation with my gps.  I use the (now) Garmin Inreach Explorer.  I have loaded into it individual points for the beginning of every road segment.  The file name for each point consists of a consecutive road number, the length of this segment and cumulative mileage to that point.  When I get to an intersection I just set the gps to navigate to the next point and it will give a straight line direction.  The name of the  point I am at tells me how long that segment is , I set it on the odometer, put the gps in my pocket and go merrily on my way until the odometer says to stop.  I know, it's my own particular prejudice, but it seems to me if you have a gps screen plopped in front of your face you have just changed the whole deal into a video game.  I prefer to ride the ride and then try to figure out where the hell I ended up.  It's worked out pretty good so far.

All the data here is  currently under construction.   I parsed the nav points into a spreadsheet so was able to get more accurate totals and I also switched from counter clockwise to clockwise with the start point to near Newberry Volcano for easier access.  More to come.