Buttonrock 

There is some great bouldering in this area, the Lion's Den is a mere 20 minute hike up the slope opposite the River Wall. Many unclimbed rock still remains in the vicinity with Twin Dinosaurs (only one established problem, "Snott the Mamma" V4, just across a meadow from the Den).

This was the worst area yet! Approaches are long, long, long and boring. Encountered hostile, beer-swilling fishermen at the parking area; our car was vandalized. This was definitely a 'never-again' experience for us. With so much great rock along the Front Range, why would anyone waste their time in Lyons?

I have never found this to be the case, the Lion's Den area is very isolated (ok the approach includes hiking 1 1/2 miles up a steep draw), but the sheer quality and quantity of problems make for a great day of climbing.

I love climbing and fishing at Button Rock. Have had nothing but pleasant experiences here. Hopefully everyone else does also.

If you hike up the road to the fork (porta-potty), there are some good/okay routes and many topropes across the river (east side) - you can't miss the large crag. Cross the river just above the pipe-gate heading toward the dam/res; some new route potential as well. Great place if you want true solitude.

The area mentioned by camerones looks like it has a lot of potential. But the slabs look as if they would need some fixed hardware.

EDIT: This section is referred to in the new Gillett guide as Below Price (as in below Price Dam).