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