First Fork Sinnemahoning Creek carves a deep path through Potter County, serving as the central axis for this rural landscape. The waterway is significantly altered by the George B Stevenson Dam, which created a reservoir within Sinnemahoning State Park. This infrastructure, along with the Brooks Firetower on the western ridge, reflects the 20th-century focus on conservation and water management in the Pennsylvania Wilds. Small settlements like Lushbaugh and First Fork are situated along the valley floor, while the surrounding upland is defined by numerous family-named hollows and creek branches. Genealogical interest is centered on the Gilmore Cemetery and Smith Cemetery, both located in close proximity to the creek. The terrain is further marked by the Barrett Slide and several narrow forest roads, such as Lick Island Forest Rd and Brooks Run Rd, which provide access to the densely wooded interior.
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1945 · Driftwood
USGS Topo · 1:48,000
1945 · First Fork
USGS Topo · 1:24,000
1945 · Sinnemahoning
USGS Topo · 1:24,000
1945 · Driftwood
USGS Topo · 1:24,000
1945 · Cameron
USGS Topo · 1:24,000
1946 · Renovo West
USGS Topo · 1:62,500
1946 · Hammersley Fork
USGS Topo · 1:24,000
1946 · Keating
USGS Topo · 1:24,000
1947 · Cameron
USGS Topo · 1:24,000
1947 · First Fork
USGS Topo · 1:24,000