A beaver did this

A beaver did this, originally uploaded by efroymson.

There are beavers where The Nature Conservancy has restored a former Santa Fe, NM reservoir. When we used to go to Santa Fe this area (near Canyon Rd and Cerro Gordo) was fenced in. Now the reservoir is further up the canyon, and there is a reserve and a park and bike trails all around.

There is a sign prohibiting dogs from the reserve, as they might scare the beavers.

You can see the beaver teeth marks if you look for them. They are rodents, so if they don't eat trees their teeth grow through their heads. Apparently there is some nutrition in the cambrium as well.