The Coillte road from M05739 48822 A makes this a very accessible hill. I departed from it at M05664 47931 B, and headed up to the mountain bike path, across that and made directly for the cairn. I found the going on the hill proper a little awkward with deep beds of grass making it a bit of a slog. The Cairn is impressively large, with a depression on the NE side and on top. The historic maps name it as Carn Seefin, so I take it there's a Fionn MacCumhaill connection. I had a damp day but it made for dramatic scenery on Lackavrea and Knocknagussy.

Coming down, shortly after junction on the Coillte road at M05143 48212 C I made an unorthodox route down, following the small river. This section of the hill has an interesting geology with curious green tinted sandwiched stone in the river bed. I thought maybe it was marble but the green tint seems to be algae so I take it they are varying sandwiched schists. The river makes a bit of a ravine for itself and has a natural stone bridge it dives under and several small waterfalls. The largest of these at M056 482 D has a hidden opening tucked into its left as you face it, a small mine opening that is not marked on the OSI map. The drop that the river falls down continues SE east along the contour of the hill and there are several disused old copper/pyrite mines along it. Seemingly there are quite a few boreholes and test mines on the hillside.. There was once a tramway that brought the ore to Lough Corrib shore near where the river meets the lake, from where it was brought by steamer to Galway harbour for export in the 19th C. The mines were run by the Hodgson family who lived at Currevagh house. Linkback: https://mountainviews.ie/summit/953/comment/17970/