Brecon Beacons National Park, eastern area : sheet OL13; 1:25,000  [Map] 

 -  OS  2015 
 - Explorer .
<br/><br/><label>ISBN: </label>9780319242520 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Brecon Beacons - Maps
<br/><br/><label>Dewey Class. No.: </label>912.42