US lakes & pondsUS lakes & pondsCowanshannock · Plumcreek · Atwood, Pennsylvania — Armstrong County.
Surface area: The USGS National Hydrography Dataset outline (NHD Permanent ID 123851491).
The red circle marks Keystone Lake.
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.
Fish species listed by PFBC biologists as warmwater/coolwater fishing opportunities: Black crappie, Bluegill, Common carp, Muskellunge, Largemouth bass, Pumpkinseed, Rock bass, Smallmouth bass, Tiger muskellunge, Walleye, White crappie, Yellow perch.
Source: Pennsylvania Fish and Boat Commission (PFBC) warmwater/coolwater fisheries lakes and stocked trout waterbodies (via PASDA), record for Keystone Lake, Armstrong County. See PFBC fishing for regulations and stocking schedules. Acreage here can differ slightly from our mapped outline.
Numbers on the map match the list at rightbelow.
Shoreline: USGS National Hydrography Dataset (NHD Waterbody, Permanent ID 123851491), 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 7 campgrounds and RV parks within 15 miles of Keystone Lake, 3 of them within 5 miles. 1 is right on the shore. Distances are straight-line from the nearest point on the shoreline, so driving distance is longer.
RVs welcome · Tent sites · Showers · Toilets
RVs welcome · Tent sites · Showers · Toilets
RVs welcome
Season: Apr-Oct
RVs welcome · Tent sites · Dogs allowed
RVs welcome · Tent sites · Cabins or yurts · Showers
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: Recreation.gov (RIDB) · OpenStreetMap contributors (ODbL). Pulled Oct 12, 2026.
Live from the National Weather Service API for the lake's coordinates (40.7483, -79.2937). The nearest station may be several miles away. NWS forecast for Keystone Lake. 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.
2 public access sites listed, 2 with a boat ramp or trailer launch.
| Site | Town | Owner | Type | Parking | Fee | Uses | Map |
|---|---|---|---|---|---|---|---|
| Atwood | Cowanshannock | PFBC/Keystone Power | Boat ramp · Yes ramp | — | No fee | Boating | 40.7577, -79.2835 |
| Numine | Cowanshannock | PFBC/Keystone Power | Boat ramp · Yes ramp | — | No fee | Boating | 40.7550, -79.2764 |
PFBC fishing and boating access points
Fees, hours and rules change; confirm with the site owner before you go.
Keystone Lake covers about 865 acres in Cowanshannock, Plumcreek and Atwood, Pennsylvania (Armstrong County).
Pennsylvania Fish and Boat Commission lists Walleye, Muskellunge, Largemouth bass, Smallmouth bass, Black crappie, White crappie, Bluegill, Yellow perch, Pumpkinseed and Rock bass and 2 more.
Yes. 2 public trailer launches are listed: Atwood and Numine. Check posted fees and parking rules.
Yes. We list 7 campgrounds and RV parks within 15 miles, 3 of them within 5 miles.
Keystone Lake touches Cowanshannock, Plumcreek and Atwood in Armstrong County, Pennsylvania.
Know Keystone Lake? Tell us about the launch, parking, where they're biting or anything a first-time visitor should know. Tips go privately to the LakeRipple editor; nothing is posted automatically. Helpful tips may be featured on this page (we'll use your first name only if you give one).
Straight-line distance between lake centers. All Pennsylvania lakes & ponds · All waters in Cowanshannock