Lough Derg
Loch Dearg
Lough Derg covers 8.8 km² with 22.3 km of shore in County Donegal, 5.9 km south of Pettigo.
A public road or path on the map comes within 18 m of the shore, along about 750 m of it, and there are 3 more stretches like it elsewhere on the shore. That is what the map contains. It is not a statement that the public may walk there, because OpenStreetMap does not record permission, and nobody has checked this lake against its owner.
- Area
- 8.8 km² measured from the mapped outline
- Shore
- 22.3 km around the outline
- Published area
- 8.9 km2 Wikidata
- Greatest depth
- 3 m Wikidata
- Height
- 143 m above sea level Wikidata
- County
- County Donegal
- In Irish
- Loch Dearg
- Public access
- A public way reaches the shoreMeasured from the map, not from a statement of permission
- On the map
- OpenStreetMap record
Where it is
The pin sits from the main access point on the shore, and every distance on this page is measured from that same point. The other pins are the nearest lakes in County Donegal.
Parking, viewpoints and stops
Everything here is measured from the main access point on the shore. A viewpoint is a place that looks at the lake, which is not the same as a place on it.
An unnamed car park is 930 m away, and the walk from it to the shore is 1.4 km along mapped paths. The map records nothing about a charge.
None mapped within 2.5 km.
No bus stop or station is mapped within two kilometres.
Getting to Lough Derg
About these directions
Public transport times come from National Transport Authority. Timetables cover 2026-09-18 to 2027-09-19. These are scheduled services; check with the operator for cancellations and changes before travelling.
Walking and driving times are estimates. A town search starts at its centre; choose your location or a point on the map for a more precise starting point. Eircode search is not available.
How journey planning worksDestination, access and nearby stops
Lough Derg is in Pettigo, County Donegal. Routes here end at the stretch of shore a public way reaches, which this site measured on the ground. A car park is recorded 1397 m from the water, about 17 minutes on foot.
No scheduled stop was found within 2.5 km of Lough Derg. On-demand services may not be included.
Getting to Pettigo covers the journeys into the town itself.
The nearest other lakes
Ordered by distance from the main access point on the shore, in a straight line, which is the same point and the same measure as the figures beside them.
Questions people ask
Can you walk to Lough Derg?
How big is Lough Derg?
Where can you park for Lough Derg?
How do you get to Lough Derg without a car?
Where this comes from
- The lake itself
- The outline, the name and the identifiers are OpenStreetMap records. Correct it there Figures marked Wikidata come from Q1871373.
- What this site measured
- The area and the shore are worked out from that outline. The stretches of shore a way reaches, the walk in from a car park and every distance on this page are worked out here, on this site’s own graph of the OpenStreetMap ways, last built on 2026-09-20. These are this site’s calculations, not the map’s, and a mistake in them is a mistake here.