Link: http://www.paenvironmentdigest.com/newsletter/default.asp?NewsletterArticleID=58447&SubjectID=
Workgroup: Abandoned Mine Drainage
PA Mine Map Atlas Has Served State Since The Quecreek Mine Rescue In Somerset County
Cover photo credit: Ed Bacon
Link: http://www.paenvironmentdigest.com/newsletter/default.asp?NewsletterArticleID=58447&SubjectID=
Workgroup: Abandoned Mine Drainage
Cover photo credit: Ed Bacon