Antiquarian Angler
Database of new, pre-loved and rare fishing books.
http://www.antiquarianangler.com

Countryman Books
Collectable fishing, shooting, hunting, and horse books.
http://www.countryman.co.uk/

Pinnacle Books
Secondhand and rare books on mountaineering, polar exploration, Scottish topography, central asia and skiing.
http://www.pinnaclebooks.net

Trophy Room Books
Recently published and rare, scarce and out of print big game hunting books with emphasis on travel, exploration and safari in Africa.
http://www.trophyroombooks.com/