GRAVEL ON THE STAIRCASE: MIDDLE TO LATE PLEISTOCENE PIEDMONT DEPOSITS AND ENVIRONMENTAL CHANGE, GRAND STAIRCASE, SOUTHERN UTAH
RITTENOUR, Tammy M., Dept. of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322-4505 and SHORT, Alexander K., Department of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322