This drawing covers the Mendip Hills, from Wrington to Wells. Pencil rays extend from the left of the map towards Red Hill, on the right, and Mark and Tillham, on the bottom right. The draughtsman used these lines to measure relative distance and to plot locations by triangulation. Masberry Castle is shown in the bottom right, on top of a hill whose steepness is indicated by soft brushwork interlining ('hachuring'). The castle path joins the main turnpike road, whose length is annotated at intervals of one mile. Many field boundaries are marked in red, denoting stone walls rather than corrections in this case.
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This hill sketch features an engraved outline reading 'Ordnance map of the environs of Bristol'. Military barracks and batteries protecting the Bristol Cannel are recorded at the mouth of the River Severn, at the top of the map. Grave mounds ('Tumuli'), hillforts, ancient camps and antiquities are noted in gothic script at Bitton and to the right of Dundry Hill. Otherwise, quarries, mills and pits dominate this industrial region of the county of Avon. Corrections in red ink and other additions were made at a later date.
Lydiard St. Laurence
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This drawing covers part of Somerset. The narrow ridge of the Quantock Hills, depicted on the left by brushwork interlining, runs north west from Taunton Deane Vale for 19km to the Bristol Channel coast. At the top of the sheet, white rocks are indicated along the coastline of Bridgewater Bay. Woodland, heathland, formal parkland and arable land are distinguished by symbols.