Penrith town, once in
OS County Series (Cmd 50 9)
|County Series maps of Great Britain, scales 6 and 25 inches to 1 mile, published by the Ordnance Survey, Southampton, Hampshire, from about 1863 to 1948.|
|period:-||19th century, late; 1890s|
supposed site of 13th century castle
Perriam, D R & Robinson, J: 1998: Medieval Fortified Buildings of Cumbria: CWAAS:: ISBN 1 873124 23 6
A tower is marked at NY52153320.
|Old Cumbria Gazetteer - JandMN: 2013|