BETA PHOTO: "Mystery Crag" from Signal Rock (across the street...
This is an incredible crag with beautiful views of the Indian Peaks near the top of Coal Creek Canyon. It is about 200' tall, 2,000' long, and 45 degrees overhanging in parts. The entire crag and access to it are in the Roosevelt National Forest.
There are about 15 bolted routes that appear to be in the 5.10-5.13 range. There are several more routes that could still be bolted here, along with potential for some traditional lines in the 5.6-5.11 range.
If anyone has any information on this crag (name, developers, routes), please post here and I will rename it accordingly.
From Boulder, drive South 10 miles or from Golden, drive north on CO 93, and go West on Coal Creek Canyon Road (CO Hwy 72). Go 11 miles to the Wondervu Cafe on the left. From the cafe, drive 0.9 miles further West on CO Hwy 72, and park on the right side of the road at a left switchback.
This is in Roosevelt National Forest. Follow a trail marked with blue dots which will lead you right to the base of the crag. It's a beautiful 20 minute hike.
Alternate approach: due to the recent incident with tire slashing at the main trailhead, there is an alternate approach to the crag. It's not as good, but your car won't be messed with. People can email me if they'd like more information.
Eds. There have been some instances of slash tires from the locals.