Tent Rocks NM is located just north of Albuquerque, New Mexico. Native Americans referred to the area as "Kasha-Katuwe", or white cliffs. Most of the rock is what a friend of mine once called "pudding stone", a jumble of rocks and gravel held together by a rocky pudding. The area is part of the Jemez volcanic field. The rock here was part of the pyroclastic flow from a volcanic eruption that occurred 6-7 million years ago.
As wind, water and other erosive forces wore down the pudding stone, large rocks served as "hard hats" and created "hoodoos" or the conical shaped formations.
There is a 1.5 mile loop trail that winds around the cliffs giving great views of the area. There is also a one mile long side canyon trail that takes hikers to the top of the cliffs for an even grander view. This trail is very interesting as part of it is a narrow slot canyon.