Good Water Rim
This is one of the best rides in Utah. The 15 miles of singletrack follow the edge of Good Water Canyon. It's upper-intermediate level riding that seems to go on forever. Plus great views, coming so often you'll stop looking! As a loop with 6 miles of dirt road, the entire ride is 21 miles. Intermediate riders can cut the loop in half for a shorter ride. There are no sustained climbs, but the trail has frequent little dips and endless twisting turns.
Riding notes, clockwise ST, counterclockwise road return,
from the Little Grand Canyon Overlook parking loop:

0.0   From the eastern overlook, north on DT
N39 05.731 W110 44.937
0.9   You should be on ST now, watch cairns
4.9   Keep R  N39 06.544 W110 45.370
6.8   Keep R  N39 06.996 W110 45.305
8.2   R onto road, immediate L onto ST
N39 07.524 W110 45.044
(Bailout option here: L on road)

15.0  East on DT  N39 06.734 W110 44.029
15.9  Keep L (R=campsite and views)
N39 07.080 W110 43.292
16.4  Keep L  N39 07.400 W110 43.587
18.1  L on main road  N39 07.377 W110 45.431
20.4  L along canyon edge
N39 05.582 W110 45.537
21.0  At parking

Getting there, from the north: Exit US-6 in Price, southbound on highway 10. Go through Huntington. (In Huntington, there's an alternate road that ends up at the trailhead. I haven't tried it.) As you approach Castle Dale 28 miles from Price, watch for a sign that says "San Rafael Access" and a broad dirt road on the left (heading east). There's a huge corral near the start of the road. Once you're on the dirt road, go 12.2 miles. Turn right at an X intersection where you'll see a trail kiosk and a bathroom. Drive 7 miles south, staying on the main road. When the road hits a cliff edge, turn left and go another 1/2 mile to the Little Grand Canyon Overlook. Park here. Start your ride on the small doubletrack on the north end of the circle.

Yellow = suggested trailheads.

From the south: On I-70, take the Sinbad or Ranch Exit 131, 25 miles west of Green River. (Note! Until a few years ago, this exit was "Ranch Exit 129." It is still shown that way on most maps and software. Never mind the number. When you see "Sinbad" get off the freeway!)Head north. The road will veer east along the freeway, then turn north again. After 21 miles on dirt road, cross the San Rafael River and enter Buckhorn Wash. Nine miles later, turn left on Oil Dome road and drive about 2 miles to the Wedge road, turn left and proceed as above.
Copyright 2010 Mad Scientist Software Inc. Trail conditions and alignments change. Use this trail guide at your own risk.