Dillon Reservoir four ski-resorts. Arapahoe Basin is medium-sized resort that is approximately ten miles from the lake. Keystone Ski Resort is a large tourist destination that is located approximately five miles away. Breckenridge, which is one of the largest ski resorts in Colorado, is located approximately seven miles from Dillon Reservoir. Copper Mountain is located approximately eight miles from Dillon Reservoir. These resorts stay open all year round. The reservoir is also a center of attraction for the area. During the winter months, ice fishing and snowmobiling are common activities. For warmer months, the towns of Dillon and Frisco each have marinas
Theobald Dillon, 7th Viscount Dillon Theobald Dillon, 7th Viscount Dillon Theobald Dillon, 7th Viscount Dillon of Costello-Gallin (died 1691) was a supporter of King James II and was attainted on 11 May 1691 in the Williamite War. His attainting in 1691 was reversed in favour of the 8th Viscount on 20 June 1694. In the 1680s he was lieutenant-colonel in Clanrickarde's Regiment of Guards. He had raised the Dillon Regiment in 1688 for James II, which fought in the Williamite war in Ireland. He was a Roman Catholic land-owning member in the Irish House of Lords of the Patriot Parliament of 1689, and was killed