Lough Gur has been a place of continuous habitation for at least 6,000 years since the arrival of the Neolithic people and represents in microcosm each of the different ages. Examples of archaeological sites for each age include:
Stone Age
- Neolithic houses of Knockadoon
- Megalithic tomb
Bronze Age
- Grange Stone Circle
- Enclosed habitation sites on Knockadoon
- Circles O and P
Iron Age
- Ring barrow on Knockfennel
- hill forts on surrounding hills
Early Christian Period
- Stone forts of Carraig Aille
- The Spectacles
- Bolin island (crannog)
Medieval Period
- Bouchiers Castle
- Black Castle
Post-medieval Period
- New Church (Teampall Nua)
- Mass Rock
- Lime Kiln
- St. Patrick’s Well