A local group of mine,has a interest related to the Erie's jseup branch(?) (I also am primarily interested in Rail roads both past and present) but anyway there was a colliery located in Throop PA which the Erie served.It was the Underwood colliery of the Pennsylvania coaql company.We are seeking any maps and photos of this colliery. Any help or information you may have would be of great help to me(the researcher) and our group The Underground Miners Website  Thankyou -Tony Wilson