Horse Canyon Road passes through descent shrubsteppe and a great patch of juniper woodland and is easily accessible from US-191 via the Horse Canyon Road Rest Stop turn off. The dirt road is graded and easy to drive out to Horse Canyon and back--its about 10 miles round trip. I prefer to bird it as part of the loop starting on SR-123 to the north coming out of Wellington and birding the Sage Flats, the East Carbon WTP, Sunnyside Park, and the foothills and junipers along SR-124 before heading back to US-191 on Horse Canyon Road. You shouldn't see a ton of vehicles out here and can bird along the road, or even in the habitat off road or via side roads. With a backdrop of the Book Cliffs to the east and a good patch of trees here, it might be worth a check if passing by to do a little exploring.
Keeping this one short--the junipers along the road are the reason to visit this site. Since it can be included as part of the loop mentioned above, its worth a few minutes stop to look around. JUNIPER TITMOUSE and BEWICK'S WREN can be found here, while in the breeding season MOUNTAIN BLUEBIRD, CHIPPING SPARROW, and a host of other species are possible. Since this location has generally not been birded in the past the actual species distribution knowledge here is limited. I suspect SCOTT'S ORIOLE, GRAY VIREO, GRAY FLYCATCHER, and PINYON JAY among other may be found. During migration 100's of DARK-EYED JUNCO might be seen passing through the habitat which despite being dry is surrounded by barren desert making it the lesser of two evils.
The most direct way to get here is from the on ramp at Exit 243 on US-191/6 in Price head south on US-191 for 24.4 miles till you reach a turn on your left for Horse Canyon Road. Turn here and you are on Horse Canyon Road for 4.9 miles till it intersects with SR-124. Alternatively if you are driving the loop from US-191 out to East Carbon and back you will hit Horse Canyon Road after driving 7.9 miles along the foothills on SR-124 from East Carbon.