Description and travel 32 History 32 Indians of North America 17 Frontier and pioneer life 14 Travel 13 Territorial expansion 12 Discovery and exploration 11 more ... Descriptions et voyages 10 Discoveries in geography 8 Exploring expeditions 7 American 6 Histoire 5 Overland journeys to the Pacific 5 Indiens d'Amérique 4 Natural history 4 Explorers 3 Slavery 3 African Americans 2 Bibliography 2 Biography 2 Deserts 2 Déserts 2 Emigration and immigration 2 Expansion territoriale 2 Generals 2 Gold mines and mining 2 Hunting 2 Indians, North American 2 Mexican War, 1846-1848 2 Migration, Internal 2 Missions 2 Native American 2 Pioneers 2 Sciences naturelles 2 Swiss 2 Wars 2 Weststaaten 2 19th Century 1 Abolitionists 1 Adventure stories, German 1 less ...