My DH and I are planning a trip out to Utah May 24-28th, and we are planning to take our bikes and do some riding while we are there. We got a book, "Cycling in the National Parks- Utah & Colorado" but most of the rides are very short--we want to get in some 40-50 milers with some hills.

A good friend, also a road cyclist, but based in another area, strongly suggests we don't try to ride on the road there--she says it seems dangerous to her. We're accustomed to riding in traffic with a wide shoulder, or on country roads where there isn't much traffic, so trucks and cars just go around.

Does anyone have experience riding on roads in that area? Any suggestions?

Thanks!