Northern Geophysical of America, Denver, Co No description specified. 1-3 (3 Records) Documents Archaeological Inventory of Two Seismic Lines Northwest of Escalante, Garfield Co., Utah (1984) Archaeological Survey of a Portable Seismic Line Near Death Ridge, Garfield County, Utah (1984) Archeological Inventory of Two Seismic Lines Northwest of Escalante, Garfield Co., Utah (1984)