Conplete Archaeological Service Associates for the BLM San Juan Resource Area No description specified. 1-1 (1 Record) Documents Cultural Resource Planning Inventory Burro Canyon Disposal Site Slick Rock Umtra Project San Miguel County, Co (Casa 90-21)>Cultural Resource Significance Testing and Evaluation Sites 5Sm2187 and 5Sm2192 Burro Canyon Disposal Site Slick Rock Umtra Project San Miguel County, Co. (Casa 93-18) (1990)