Once on the trail, it's sweeeet. It's a little bit overgrown in places, but it's still awesome. Several water bar drop-offs. At the very beginning there's a series of maybe 10 or 15 waterbar drops in a row, a fun technical section. I've taken my DH bike on this trail a few times, it's all downhill to Granite Basin Lake. Watch for hikers on weekends. Some corners are blind. This is my absolute favorite trail in Prescott.
Go up Iron Springs road about 6 or 7 miles past the williamson valley rd. stoplight, go over the mountain and see "little granite mtn. trailhead" on the right. Park there, or ride up there. Take that trail up about a mile, then go through the gate at the top. You'll begin descending along the side of a mtn., after about 1/2 mile you'll see a gate on the right for Clark Springs.
Summary: First off, this trail is by far the best trail in Prescott. You start off with a grueling climb, its like 1-2 miles, but then its downhill. The downhill is very technical, and is all singletrack. The very beginning of the downhill is a series of waterbars that will test your decision making. Then, the rest is just fast, technical, downhill fun.
Recommended Route: DIRECTIONS- Go out Iron Springs Road 4.1 miles, turn right into the Granite Mountain Trailhead, then you're good to go.
If you have two cars, its best to leave one at the Williamson Valley Trailhead. Do the Clark Springs Trail, and when you finish, take a right on the road that you come on to, follow it until in turns to pavement (like .5 miles) then turn right, you will see a trail sign, trail 351(.6 miles), take that, this will bring you up to a fork, go left, on trail 348(.6 miles), take a right on to trail 347(4.4 miles) then you will be at the other car that you left at the Williamson Valley Trailhead.
Other recommended trails in the same area: All of the Granite Basin Trails are fun. Thumb Butte has very good trails.
Summary: This trail was scored a 4.8 when I reviewed it. It's good to be stoked about your local trail but try to keep it real. The trail mentioned is a 2 mile DH. It's the best section of the suggested route and it's barely scores a 4. The suggested climb trail #37 sucks with only saving factor of some interesting landscape. Trail #350, #349, and other connecting trails are a 3 plus tire but if you follow suggested routes this makes up only another 2 miles of single track if that. Then you get to enjoy almost 4 miles of road with significant elevation change while inhaling diesal exhaust from the semi-trucks. See suggested route below.
Recommended Route: Take Iron Springs Rd to FR 374. Pick a place to park near the trailheads, get a map at a pay station, and connect/loop the single track surrounding GBRA. Then do the Clark trail as an in & out. You could probably get around 10 miles of single track and not have to pedal along semi-trucks/road at all. This would elevate the overall score of this trail to a 3 plus.
Other recommended trails in the same area: If I was living in Prescott I would ride these trails. If I had to drive 30 minutes to get there I wouldn't bother. Sedona has trails that deserve high 4 scores. This trail would rate a 2 in Sedona. I don't live in Sedona but I drive there frequently. Flagstaff also has excellent trails.
Summary: Great trail. Guided a ride last weekend and we went down this trail. The ride was 29 miles long, so this was only a small part of the ride, but it was also the best part. This has remained a very good trail in the prescott area, and the lack of traffic on it has only made it better. Not too overgrown or anything, and the lack of attention has caused some pretty good sized drops where the water-bar things are-all along the trail. It is a pain in the butt to ride up trail 37 just to do this trail, and it is also a pain to ride up this trail from granite basin...but I have found a better way.
This trail is a solid 4. Not the most technical trail ever(but the beginning will test any good technical rider), and not the most epic descent or anything, but it's one of the best trails in prescott, along with trail 297, 284 and a couple others.
Recommended Route: Rode south on 349 to the southernmost point (located in a small canyon), then took a right on a non-marked trail. It's an actual trail, and it's on the topos, but it doesn't have a number and it is very hard to find, I've been looking for it for a while now. Anyhow, we got on this trail, kept to the right at any trail junction, skirted the OHV area, and met trail 37 near the top where it intersects with the power lines. Then rode the rest of 37 and rode 40 back down. This was a good way to do this trail, and can now be done by riding south from williamson valley trailhead for a pretty long route.
Other recommended trails in the same area: 349, 351, 352, 345, 347, 348, 350....
Review Date January 29, 2004
Overall Rating 5 of 5
Aerobic Difficulty 3 of 5
Technical Difficulty 3 of 5
Ridden Trail: Every few months
Reviewed by: danny
Summary: this is a great trial that is not one of those really long 20 mile rides. i love this trail because of the downhill. its a awsome tree covered supper fast singltrack. the up hill is a little hard, but the downhill is worth it.
Recommended Route: take iron springs road up to little granet basin trial and park. ride up go thourght the gate at the top and then start down. go though the gate on the right and you will end up at granet basin lake.
Review Date September 26, 2002
Overall Rating 5 of 5
Ridden Trail: Every few months
Reviewed by: pedalAZ
, from Phoenix
Summary: My family has a cabin right across the road from this trailhead. I had hiked the trail numerous times before getting into MTB in 2001. The first hill climb up from the trailhead on #37 is a real challenge. It is relatively steep and unrelenting, with dozens of water bars of varying heights. My next door neighbor can clean this ascent - I've seen him do it. Just don't expect to do it yourself! My favorite variation is to continue north, not taking the turnout toward Clark Spring. The very best part of the trail is the downhill after the second summit. It has a couple of tough skill testers: a 2 foot drop that begins with a 6" wheelstopper, followed in another 100 yards by a combination of steep water bar drops in the middle of a switchback. I can't say whether I like this ride more as an out and back (going all the way to Blair Pass - any further and you're poaching the Wilderness boundary), or taking the left trail fork after the downhill and going into ranch country for a loop back via Iron Springs Road. Both ways are good, with the combo I described above being the best! The trail is overgrown in spots once beyond the turnoff to Clark Springs, so if it's not too hot, a set of shin guards might be nice.
Recommended Route: Skip the Clark Springs turnout and continue on 37. Bear right at sign to Blair Pass. Continue to Blair Pass, then ride back to the Blair pass sign, take the west fork this time, and follow it out into the ranch country, past the steel tank, out to Contreras Road, and eventually back to Iron Springs Road, about 2 miles west of the trailhead and grunt back uphill to the car.
Other recommended trails in the same area: The race course from Williamson Valley trailhead; the downhill route from Sierra Prieta Overlook to Thumb Butte Park, Groom CReek (#307).