This canyon is on the Cahuilla reservation in Palm Springs, CA. It was home to an ancient Cahuilla village, and is now open to the public. There is more historical information at www.tahquitzcanyon.com. Some of these photos were shown on Larry Harrop's blog two years ago. Here is the entrance to the canyon.
The boulder to the right in the photo below is called the Fox Dress boulder, after a legend about a maiden who turned herself into a boulder. It looks like an erratic on bedrock.
Further along the trail, some striking boulders.
Looking back towards Palm Springs.
This local resident also thinks the noonday sun is too strong!