Lists of mountains and hills in the British Isles in England, 366 in Wales and 11 in the Channel Islands. A Simm is a mountain the British Isles that is over high and has a prominence of at least . The word comes from Six-hundred Metre Mountain. There are currently 2,754 recorded Simms in the British Isles, including 2,188 Scottish Simms, 192 English Simms, 149 Welsh Simms, 1 Isle of Man Simm, and 224 Irish Simms. By definition, all Simms are also TuMPs (see below) and most, if not all, are mountains, depending on whether 600 metres or 2,000 feet (610 m) (e.g. a ), is used as the
British Isles naming dispute acronym IONA is a useful way of addressing the coming together of these two islands." This name is ambiguous, because of the other islands in the North Atlantic which have never been considered part of the British Isles. Some academics in the 1990s and early 2000s also used the term "Northwest European archipelago"; however, its use appears sporadically in historiography and rare outside it. The name "West European Isles" is one translation of the islands' name in the Gaelic languages of Irish and Manx, with equivalent terms for "British Isle". In Irish, (literally "Ireland and Great Britain") is the more