Gritsa Hill Tholos A dates to LHIIIC.
Sources:
- Bryan Feuer, Mycenaean Civilization: An Annotated Bibliography through 2002, , rev. ed. McFarland 2004
- Tholos in a landscape: Gritsa Hill (C1280) and Cemetery-http://squinchpix.blogspot.com/2016/04/modern-features-as-aid-to-locating.html?view=magazine