western Pennsylvania

You have access
Continuity of the glacial period
George Frederick Wright

American Journal of Science March 1894, s3-47 (279) 161-187; DOI: https://doi.org/10.2475/ajs.s3-47.279.161
You have access
Pleistocene fluvial planes of western Pennsylvania
Frank Leverett

American Journal of Science September 1891, s3-42 (249) 200-212; DOI: https://doi.org/10.2475/ajs.s3-42.249.200
You have access
Preglacial drainage and recent geological history of western Pennsylvania
P. Maxwell Foshay

American Journal of Science November 1890, s3-40 (239) 397-403; DOI: https://doi.org/10.2475/ajs.s3-40.239.397

Main menu