Submitted by Anonymous (not verified) on Thu, 10/05/2023 - 03:01 Delaware County, Pennsylvania. Alexandria, Virginia: Alexandria Drafting Company, 2004. Entry Date. March 1, 1990. *Elevation. External URL https://www.google.com/url?rct=j&sa=t&url=https://edits.nationalmap.gov/apps/ga… Log in or register to post comments