brave the wild river: the untold story of two women who mapped the botany of the grand canyon

polar frontiers by richard lyttle

river runner's guide to the canyons of the green & colorado rivers – rafting & paddling guide to marble gorge & grand canyon

a blizzard of polar bears by alice henderson – alex carter series book 2 | arctic wildlife conservation thriller

mother of god by paul rosolie - praised by jane goodall & bear grylls | amazon rainforest memoir

after the north pole – erling kagge's record-setting 58-day ski trek | arctic exploration & climate change

women and wilderness by anne labastille

grinnell: america's environmental pioneer and his restless drive to save the west

finding abbey by sean prentiss

a naturalist in alaska by adolph murie

walk in the park: a grand canyon hiking adventure by kevin fedarko & pete mcbride