Castlereagh

The River Suck (Irish: An tSuca [ənˠ ˈt̪ˠʊkə]) is a river within the Shannon River Basin in Ireland, 133 km (82.5 mi) in length. It is the main tributary of the River Shannon. It meets the Shannon a kilometre south of the village of Shannonbridge.

Castlerea Railway Museum, formerly known as Hells Kitchen Railway Museum, is a private railway museum on Main Street, Castlerea, County Roscommon in Ireland.

Cloonshanville High Cross is a high cross which is a National Monument in County Roscommon, Ireland.

The Bellanagare Bog (Irish: Portach Baile an Turlaigh) Special Area of Conservation (or SAC) is a Natura 2000 site in County Roscommon, Ireland. The qualifying interests by which it is protected as an SAC are the presence of three habitat types: the presence of active raised bog (priority habitat), the presence of degraded raised bogs still capable of natural regeneration, and the presence of depressions on peat substrates of Rhynchosporion vegetation.

The Cloonchambers (Irish: Portach Chluain Sheamhair) Special Area of Conservation (or SAC) is a Natura 2000 site based close to the town of Castlerea in County Roscommon, Ireland. The qualifying interests by which it is protected as an SAC are the presence of three habitat types: the presence of active raised bogs (priority habitat), the presence of degraded raised bogs still capable of natural regeneration, and the presence of depressions on peat substrates of Rhynchosporion vegetation.

Castlereagh (Irish: An Caisleán Riabhach) is a barony in County Roscommon, Ireland. It is named after the town of Castlerea within the barony. Its area in 1891 was 82,081 acres (33,217 ha).