TY  - RPRT
TI  - Preliminary geologic studies of cold climate dunes, North Park, Jackson County, Colorado
AU  - Thomas S. Ahlbrandt
AU  - Sarah Andrews
PY  - 1977
DO  - 10.3133/ofr77145
UR  - https://pubs.usgs.gov/publication/ofr77145
ID  - ofr77145
ER  -