40.940211,-75.436926 coordinates are where the marker may have originally been located
Monroe - This is the only keystone marker known to have been in Monroe County
No next town noted in photo.
Named For the Last Effort To Secure A Postoffice (Not known if they ever did.)
No Date noted
Unknown. Presumed long gone. The marker in the photo is a wooden replica, which may explain why the founding date and next town name are not included, but it too is long gone. Known only from this newspaper photo.
Photo from 1960 newspaper article, courtesy of Monroe Co. Hist. Association.
Likely Along PA Route 115