@misc{indiciae641fc7b4125f, title = {Geologic investigations of proposed power sites at Cooper, Grant, Ptarmigan and Crescent Lakes, Alaska}, author = {George Plafker}, year = {1954}, doi = {10.3133/ofr54240}, url = {https://pubs.usgs.gov/publication/ofr54240}, note = {Source identifier: ofr54240} }