kasha-katuwe tent rocks national monument new mexico designated national monument january 17 2001 cone shaped tent rock formations formed volcanic eruptions about 6 7 million years ago travel u.s.a. new mexico landscapes ruins parks portrait color kasha katuwe tent rock rock national monument new mexico kash-katuwe formation volcanic eruptions geoloic eruptions jamez pyroclasts flow hoodoos caps erosion cochiti pueblo trail - Alamy