Glangevlin () is a village in the northwest of County Cavan, Ireland. It is in the townlands of Gub (Glangevlin) and Tullytiernan, at the junction of the R200 and R207 regional roads. It is surrounded by the Cuilcagh Mountains and borders the counties of Leitrim and Fermanagh. A large stone known as 'Maguire's chair' is deposited on the right hand side of the road, roughly 4 miles from Glangevlin village, so-called because it was supposedly the inauguration site of the Maguire clan in medieval times. Glangevlin has a strong traditional Irish background and Irish was spoken up until the 1930s, one of the last places in Cavan where this was commonplace. Glangevlin is also well known to have been the last place in Ireland to have a glacier lasting from the Ice age. The Cuilcagh mountains were the last affected part of the island of Ireland as well as the most western part of Europe bar Iceland. Etymology Some sources, including A Topographical Dictionary of Ireland, published by Samuel Lewis in 1837, note that the area was sometimes "known as "the kingdom of Glan," but more properly called Glangalvin, or the country of the Mac Gaurans". The modern interpretation of Glangevlin (sometimes Glangalvin) is "Glen with the Fork", but traditionally the name is said to derive from the mythical cow which belonged to Gaibhnen, the blacksmith of the Tuatha Dé Danann. The Book of Magauran, written c.1340, spells it as but it has also been spelled , as in this scribal note to the Poems on the O'Reillys: "I am in Gleann Gaibhneann, now called Gleann Gaibhle, to-day, the vigil of the feast of John the Baptist, 1599." The Gap of Glan was supposedly created by the cow when it ran away from the blacksmith's forge. In the townland of Derrynatuan in Glan is shown the site of Gaibhlean's forge today. MacKillop's Celtic Dictionary gives: "Glas Ghaibhleann, Gaibhleann, Ghaibhnann, Ghaibhnenn, Ghoibhneann, Gavelen, Gaivlen, Glasgavelen [Ir. glas, green, greenish blue; of Gaiblín (?), of Goibniu (?)]. Celebrated, magical cow, white with green spots, whose inexhaustible supply of milk signalled prosperity. The original owner is a matter of some dispute, possibly Goibniu the smith or Gaiblín, a farmer of Co. Cavan or Balor the Formorian of Tory Island". History Prehistoric Evidence of ancient settlement in the region includes a number of dolmens, ringed forts, caiseals, passage graves and lake dwellings associated with