TY - BOOK ID - 137780455 TI - Fort Union Trading Post National Historic Site : geologic resources inventory report AU - Graham, John P. AU - United States. PY - 2015 PB - Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, DB - UniCat KW - Geology KW - Historic sites KW - Trading posts KW - Trading posts KW - Fort Union Trading Post National Historic Site (N.D. and Mont.) KW - Management. UR - https://www.unicat.be/uniCat?func=search&query=sysid:137780455 AB - ER -