TY - RPRT TI - Distribution and properties of clinoptilolite-bearing tuffs in the Upper Jurassic Morrison Formation on the Ute Mountain Ute Reservation, southwestern Colorado and northwestern New Mexico AU - P. L. Hansley AU - R.A. Sheppard PY - 1993 DO - 10.3133/b2061a UR - https://pubs.usgs.gov/publication/b2061A ID - b2061A ER -