Yorkshire 267 se. Thornhill. Surveyed 1925, issued 1948.
Yorkshire 267 se. Thornhill. Surveyed 1925, issued 1948. Outline geology in black on grey basemap with red contours. National grid information in red. Slightly soiled. Tape residue on top edge. In fair to 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.