TY - RPRT TI - Development of an aerial population survey method for elk (Cervus elaphus) in Rocky Mountain National Park, Colorado AU - Kathryn A. Schoenecker AU - Bruce C. Lubow AU - Therese L. Johnson PY - 2018 DO - 10.3133/ofr20181085 UR - https://pubs.usgs.gov/publication/ofr20181085 ID - ofr20181085 ER -