Celebrating a Century and a Half: The Geologic Survey
Posted by Donald Hoskins on Nov 29, 2013 in | Comments Off on Celebrating a Century and a Half: The Geologic Survey The Pennsylvania Geological Survey, officially known today as the Bureau of Topographic and Geologic Survey, and one of the bureaus of the Department of Environmental Resources, is one of only a very few of the Commonwealth’s executive branch agencies whose history can be traced to the first half of the nineteenth century. Created in 1836, the survey spawned three subsequent geologic...read more