Cumberland 54nw, 6". Great Broughton, 1927/1928.
Cumberland 54nw, 6". Great Broughton, 1927/1928. Black outline with blue geology and red contours. In very good condition.
About the England Six Inch County Series (later edition)
These early 20th century geological maps are at 1:10,560 scale, based on county layout. Each sheet covers 2 x 3 miles in considerable detail.