US lakes & pondsUS lakes & pondsSurface area: The USGS National Hydrography Dataset outline (NHD Permanent ID 126217271).
The closest airport with scheduled passenger flights to Sawmill Run Reservoir, plus larger airports within about 150 miles:
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Airports with scheduled airline service from OurAirports (large and medium airports); larger airports are FAA large, medium and small hubs by FAA CY2025 enplanements ("major airport" = FAA large hub). Distances are straight-line from the lake's center, not driving distance; road routes are longer.
The red circle marks Sawmill Run Reservoir.
Towns and counties: U.S. Census Bureau boundaries overlaid on the USGS lake outline.
Official PFBC pages. Rules and fees change; check before you go.
Built only from the data on this page: official access lists, OpenStreetMap beaches and trails, campground listings, state and USGS invasive-species records. We don't rate crowds or water quality.
No public access sites are listed for this water in the PFBC fishing and boating access points data.
Shoreline: USGS National Hydrography Dataset (NHD Waterbody, Permanent ID 126217271), public domain. State outline: U.S. Census Bureau TIGERweb. Points: PFBC fishing and boating access points. Interactive map: Leaflet with © OpenStreetMap contributors. Not for navigation.
We found 11 campgrounds and RV parks within 15 miles of Sawmill Run Reservoir, 1 of them within 5 miles. Distances are straight-line from the nearest point on the shoreline, so driving distance is longer.
RVs welcome · Tent sites · Showers · Toilets
RVs welcome
Electric hookups · RVs welcome · Tent sites · Showers
RVs welcome · Tent sites · Cabins or yurts · Showers
RVs welcome
RVs welcome · Tent sites · Showers · Toilets
All campgrounds & RV parks in Pennsylvania
Green tent icons on the lake map mark campgrounds near the shore, and the interactive map shows the closest 12. Amenities are listed only where a source records them; call or check the campground's website before you go, since seasons and rates change every year.
Campground data: OpenStreetMap contributors (ODbL). Pulled Oct 12, 2026.
Live from the National Weather Service API for the lake's coordinates (40.8379, -79.9375). The nearest station may be several miles away. NWS forecast for Sawmill Run Reservoir. No live water-temperature sensor is shown because we haven't found a public one for this lake.
Based on solunar theory, an estimate. Major periods (about 2 hours) center on when the moon is directly overhead or underfoot; minor periods (about 1 hour) center on moonrise and moonset. The 0–100 activity score rises during those periods and gets a boost near sunrise and sunset and around the new and full moon. Weather, water temperature and pressure often matter more. Sun and moon times are calculated in your browser from the lake's coordinates with standard astronomy formulas, shown in ET (America/New_York), and accurate to within a few minutes.
Sawmill Run Reservoir covers about 10 acres in Butler, Pennsylvania (Butler County).
Yes. We list 11 campgrounds and RV parks within 15 miles, 1 of them within 5 miles.
Sawmill Run Reservoir touches Butler in Butler County, Pennsylvania.
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Straight-line distance between lake centers. All Pennsylvania lakes & ponds · All waters in Butler