Browneye, I've never done the actual arithmetic to calculate how much is paved or unpaved; but the route is overwhelmingly unpaved.
There is slab ...
-- from the mountains of NE Utah/the Wasatch Front to the west desert, roughly 145 miles
-- from the north end of Great Salt Lake back to the mtns of NE Utah; then into western Wyoming
-- outside of Idaho Falls and Dillon, MT
-- along the fringes of Yellowstone and Jackson Hole, Wyo.
-- a few miles of I-80 outside of Rawlins, Wyo.
-- leading into and out of Meeker, Colo
-- a 30-mile or so wide-open segment south of the two Wendovers @ I-80 west of Salt Lake City
Over the years I've put a great deal of effort into eliminating paved travel where possible and warranted. But I do try to make dirt-road travel purposeful and rewarding.
If I have to guesstimate the unpaved/paved ratio currently in percentage terms, I'll venture 85/15.
byways screwed with this post 06-12-2014 at 02:47 PM