The Paria Plateau survey was conducted on, and adjacent to, the Paria Plateau in Coconino County in north-central Arizona by personnel of the Museum of Northern Arizona during the summers of 1967 and 1968 (Fig. 1). All of the surveyed area is located in the Arizona Strip District of northern Arizona, although unsurveyed portions of the Paria Plateau extend into southern Utah. The Plateau is situated approximately midway between Page, Arizona on the east, and Kanab, Utah on the west. The familiar Vermillion Cliffs seen from U.S. 89 enroute to the North Rim of the Grand Canyon form the southern escarpment of the Plateau. The western boundary of the surveyed area is defined by Coyote and House Rock valleys which also separate the Kaibab and the Paria plateaus. The Paria River constitutes the northeastern boundary of the Paria Plateau making it a naturally bounded region within the Colorado Plateau subarea.