Welsh 3000s are the 15 Welsh Furths (or Welsh Munros). These are mountains in Wales that are over 3,000 feet (914.4 m), and which are on the Scottish Mountaineering Club's (SMC) official list of Furths. Geographically they fall within three ranges, but close enough to make it possible to reach all 15 summits within 24 hours, a challenge known as the Welsh 3000s challenge.