The Boulder Dash trail is a short double-black diamond expert trail in the Iron Hills trail system at Cedar City. Boulder Dash is one-way downhill. It begins near the bottom of the Green Hollow trail and descends to the one-way Lava Flow trail. It can be reached from above via the Greens Lake trailhead and Green Hollow, or from the bottom by climbing Lichen It then turning uphill on Green Hollow.
As a comparison, the route via Green Hollow and back uphill on Lava Flow is 0.4 miles longer, adding about 70 vertical feet of climbing. Not a big deal if you're not looking forward to tech stuff on Boulder Dash.
The rock slab path comes at mile 0.45. And although it looks intimidating, it's very rideable. Just keep your weight back and keep the bike moving at a reasonable pace so you don't hang up on a crack. On the other hand, don't hit it at full boogie either. There's a lot of bouncing that can easily send you into the big stuff along the side.
Short, but packed with challenges. If you're a true expert rider, it's worth extending your Lichen It to Lava Flow loop to add Boulder Dash.
At the southern I-15 Cedar City exit (Exit 57 to Cross Hollow Road and Highway 130), turn east onto Highway 130. Immediately turn right (south) from 130 onto Old Highway 91. Drive 0.3 miles. Watch for the sign for Southview Trailhead and turn left on Shurtz Canyon Drive. Now stay on Shurtz Canyon Drive to the trailhead and find a spot to park. The Lichen It Trail is to the east (uphill) from where you entered the parking lot.
Greens Lake:
On Old 91 as above, at mile 0.1 turn left on Greens Lake Drive. Keep going uphill after the road turns to gravel. The trail head is on your right, about 2.3 miles uphill from 91.
Bathrooms: Southview Trailhead
Water: None at trailhead
Camping: None at trailhead
GPS track files (right-click and "Save as..."):
GPX
LichenIt/GreenHollow
climb
Boulder Dash Trail only
Multi-track area files
Topo map for printing:
View
high-res topo
Lodging, camping, shops:
Links to Cedar City area resources