#72 of the LakePA 100 · South Central
Letterkenny Reservoir
Franklin County · South Central region · 54 acres
Quiet Water Small Water Checked Oct 2026
- Size
- 54 acres as listed by the Fish and Boat Commission's PA Lakes map
- Boat traffic
- Quiet water: paddle craft and electric-motor boats only. As listed by the Fish and Boat Commission's access map, checked Oct 2026.
- Permit
- PA boat registration or a PFBC/State Parks launch permit is required to launch here. Paddling rules →
- Dam
- This lake is held back by a dam. Stay well away from the dam, spillway and outlet structures.
Where to put in
Letterkenny Reservoir access area
Ramp · ramp
40.11042, -77.69863 (about ±50 m)
Parking: 10 spaces or more
PA boat registration or a PFBC/State Parks launch permit is required to launch here.
Access notices
No access notice on file (we last checked Oct 4, 2026). Check PFBC PA Lakes page before you go.
About Letterkenny Reservoir
Letterkenny Reservoir is number 72 on the LakePA 100: a 54-acre reservoir in Franklin County, in our South Central region. The acreage comes from the Fish and Boat Commission's PA Lakes map. It is one of the Small Water lakes, our tier for lakes under a hundred acres. Only paddle craft and electric-motor boats may use it, so it counts as Quiet Water. (Boat rules as listed by the Fish and Boat Commission's access data.) You launch at Letterkenny Reservoir access area, which has a launch ramp and parking listed as 10 spaces or more. Launching at a Fish and Boat Commission or state park site requires a Pennsylvania boat registration or a PFBC or State Parks launch permit. It is held back by a dam: stay well clear of the dam, the spillway and the outlet structures. Logging it moves you toward the South Central region milestone. In a straight line, it is about 44 miles from Harrisburg to the nearest put-in. Before you go, check posted signs, the weather and the operator's notices.
Rules for paddlers
Pennsylvania's paddler rules (permits, life jackets, whistle and light) are on one dated page. Paddling rules →
Safety
Paddling has real risks. Wear your life jacket. Pennsylvania requires it to be worn on canoes, kayaks and paddleboards from Nov 1 through Apr 30, and by children 12 and under all year. Check the weather, posted signs and the operator's notices before you launch. Stay well away from dams, spillways and outlet structures. You paddle at your own risk.
Nearby on the list
Straight-line distance between the lakes, not driving distance.
Questions about Letterkenny Reservoir
Where do I put in at Letterkenny Reservoir?
Letterkenny Reservoir has one listed put-in: Letterkenny Reservoir access area. Letterkenny Reservoir access area is at 40.11042, -77.69863 with ramp; parking: 10 spaces or more.
Are motorboats allowed on Letterkenny Reservoir?
Quiet water: paddle craft and electric-motor boats only. As listed by the Fish and Boat Commission's access map, checked Oct 2026.
Do I need a launch permit at Letterkenny Reservoir?
Yes, at the Fish and Boat Commission launch: a Pennsylvania boat registration or a PFBC or State Parks launch permit is required.
Source: PFBC, “Registration vs. Launch Permit”, checked 4 Oct 2026.
How big is Letterkenny Reservoir?
54 acres, as listed by the Fish and Boat Commission's PA Lakes map.
Sources
- PFBC PA Lakes map (lake layer) — checked Oct 4, 2026
- Fish and Boat Commission access map — checked Oct 4, 2026
- USACE National Inventory of Dams (Roxbury, PA01550) — checked Oct 4, 2026
- USGS National Hydrography Dataset — checked Oct 4, 2026
Every fact on this page comes from these public sources. Posted signs and official notices always control.
Share this lake
Download the lake card (1080×1350)
For your post or story. #LakePA100