On my Rand McNally road map there is an unpaved road marked from highway 12 (Cannonville) to highway 89 , passing Kodachrome SP, Grosvenor Arch and Cottonwood Canyon. Can you drive this road by a normal rental car? How long will this road take ? Are there any hiking trails starting from this road, which are not too long (we are travelling with two kids)? Thanks Wendy