Map sheet number 183 in the OS Landranger map series is the ideal map for planning days out & holidays in Somerset & North Dorset. The map covers an area from Glastonbury & Yeovil in the west to Shaftesbury & Warminster in the east. Other highlights of the area include: Sherborne Castle, Cheddar Gorge, Wookey Hole, Wells, Shepton Mallet & Frome. The map covers an area of 40 km by 40 km (25 miles by 25 miles). With this map you will receive a code for use on your i OS or Android smartphone or tablet. Find our more at Mobile Download FAQ. The OS Landranger map for Yeovil & Frome is available in both the standard paper version & weatherproof " Active" version.