Masatiompan is the most northerly peak on the splendid ridge that runs north from the Conor Pass. A close neighbour of Mt. Brandon it is surrounded by cliffs and v steep ground on its N flanks.
W. Park in Tiduff (Q43300 12496 A) and take the Dingle Way east, following the old track to the col between Masatiompan and Piaras Mór. This track climbs gradually to a shoulder at about 450m, from where a steep drop to the Atlantic far below is revealed. Continue to the col with its ogham stone, thengo left following a fence to the summit cairn. Allow 3.5 hrs+ for this 8.5k return with 650m ascent.
W. It's also possible to start at Brandon Creek Q42305 12028 B and hug the coast on a narrow trail above spectacular cliffs to Beennaman before heading up M's steep western spur. 2.5 hrs to summit.
E. Park carefully at the end of the R550 near Q52621 17262 C. From here cross a stile and follow a track that will carry you past Bookeen's southern col and on up past Faill an tSáis before joining the Dingle Way at Q49132 14544 D. Follow the DW vaguely west until you reach the col at Q46484 14118 E and then walk north for 500m to the summit. 3hrs+ to summit
A more scenic, rugged and undulating route that stays closer to the coastline can be started at the same point and skirts the north of Bookeen before joining the previous route at Q49753 15632 F.
The Dingle Way route can also be accessed by starting in the village of Brandon or by parking at Q50825 14584 G
Tracks include track/3916 and track/3650 Linkback: https://mountainviews.ie/summit/66/comment/4826/

This is a view of Masatiompan from the SE. I approached it, starting from the village of Cloghane, by crossing the Faha Ridge at its lower eastern end and heading straight for the mountain across the wide expanse of grassland of Macha an Mhíl. The Dingle Way, coming from Ballycurrane, skirts the steep cliffs visible in the photo, before turning E towards Brandon village and eventually Cloghane. Linkback: https://mountainviews.ie/summit/66/comment/2742/

This photo is taken descending the NE ridge of Masatiompan and provides a view of Sauce Creek directly ahead. A straightforward climb from the saddle between Piaras Mór and Masatiompan takes one quickly to the broad top, but this soon narrows to a tight ridge as you descend NE. I have no idea what walk the waymarker is meant to indicate, unless it is simply an extension of the Dingle Way. Perhaps it is just intended as a pointer to the fog-bound, steering them towards the NE ridge and away from the cliffs to each side. Linkback: https://mountainviews.ie/summit/66/comment/2743/

There ARE other red markers around Mastiompan; there is another one at the bottom of the NE ridge pointing back towards the one at the top. There was a 3rd post about half way down the ridge when I came down it in May 2008 but it had been uprooted. The ridge is the fast (10 mins), steep exciting route back down to the green road and the yellow-marked Dingle Way. It's also where the local wild goats hang out. Linkback: https://mountainviews.ie/summit/66/comment/3318/

Yes Milo! what a mountain! If you go this far continue north to Sas Creek.You won't be disappointed with the view. Sas means trap so don't descend!
Bran the Sea God lay down along the coast here to protect the inhabitants, one eye at Sas Creek, another at Brandon Bay and Mas A' Tiompain his hip joint. Source: Cloghane and Brandon Walking Guide by C.B.T.. Linkback: https://mountainviews.ie/summit/66/comment/216/