TY - RPRT TI - [Fourth Annual] Preliminary Report of the United States Geological Survey of Wyoming and portions of contiguous Territories (being a second annual report of progress) AU - Ferdinand Vandeveer Hayden PY - 1871 DO - 10.3133/70038926 UR - https://pubs.usgs.gov/publication/70038926 ID - 70038926 ER -