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Continue to ChatSinkhole Swamp Map - Susquehanna County, PA https://www.yellowmaps.com/usgs/topo.cfm?map=pa-1197752-sinkhole-swamp
Sinkhole Swamp Map - Susquehanna County, PA https://www.yellowmaps.com/usgs/topo.cfm?map=pa-1197752-sinkhole-swamp