General – Trade / Code: K
Discovery Sheet No. 24 covers part of County Sligo and Mayo.
Discovery maps are produced at a scale of 1:50,000 (or 2cm on paper equals 1 kilometre on the ground). Each Discovery Sheet covers an area of 40km x 30km surface area (with the exception of several portrait-format sheets, which are 42km x 32km). There are 93 sheets in the series; 75 are produced by Ordnance Survey Ireland, and 18 by Ordnance Survey Northern Ireland. The maps produced by Ordnance Survey Northern Ireland are called the Discoverer Series.