2014 Update: Blob Rock, Bitty Buttress, and all seasonal raptor closure areas on U.S. Forest Service land will be re-opened August 1, 2014 for climbing.
Each year, Boulder Canyon raptor nesting area closures are in effect starting February 1st through July 31st at Eagle Rock, Security Risk, Blob Rock, and Bitty Buttress. However, the area is monitored and closures are periodically lifted early (due to no active nest, nest site failure, or early fledging). This monitoring program is a partnership with the Forest Service Boulder Ranger District, Boulder Climbing Community, and Audubon Society. Check back periodically during times of closure for updates. More info at www.fs.usda.gov/recmain/arp/recreation.
This information is a public crowdsourcing effort between the Access Fund,
and Mountain Project. You should confirm closures, restrictions, and/or related dates.
Park as for Practice Rock and hike 100 feet up the road to a faint trail. Look for an old stone foundation wall and angle up and right to a large ledge below the Cornerstone cliff (5 minutes). One can also approach from the Bowling Alley by following the trail that angles uphill and north/west along the Tungsten Mine Shaft Cliff, angle downhill towards a gully and scramble up onto the ledge below the Cornerstone cliff (10 minutes).
This is the second route from the left end of The Cornerstone.Head up the slab to a little roof (possible to clip 1st bolt to the left), and pull through using an undercling and small right hand seam which leads to a jug by the 4th bolt. Continue on easy terrain to a 2 bolt anchor, up and left (shared with the 5.9/10 route to the left)....[more]Browse More Classics in CO
Actually, I'm not Dan but his cool chick, Jenelle. Many thanks to whoever repaired the chopped hangers at The Cornerstone. It's really a fine solid rock with 6 good routes for their grades. All can be done in a short period of time, even on your lunch break. The only slip in June - Aug. is that it is extremely hot. I recommend after 5pm or early morning. This is excellent choice for winter climbing and great for a mixed party of beginner and advanced climbers.
The routes here are fun enough, but at times it's tough to know exactly where the intended climbing lines are in relation to the bolts. It's very easy to find yourself wondering if you're using a hold that's "supposed to be" for a neighboring route. Still, a decent place to go to get a little climbing in.