CANNOCK, an urban district of Staffordshire, England, in the district known as Cannock Chase, 130 m. N.W. of London by the L.M.S.R. Pop. (1930, 34,588. The church of St. Luke is Per pendicular, enlarged in modern times. The famous political preacher, Henry Sacheverell, held the living early in the 18th cen tury. Cannock is a great mining centre, with subsidiary metal working industries. Cannock Chase, a tract generally exceeding 50o ft. in elevation, extends on an axis from north-west to south east over some 36,00o acres. It was a royal preserve, and remains for the most part an uncultivated waste, but it is also a rich coal field. Brownhills, Burntwood and Chase Town, Great Wyrley, Hednesford, Hammerwich and Pelsall are mining settlements; while Rugeley, Tamworth, Short Heath and Wednesfield are all included in the Cannock Chase field.