Conservationist George Bird Grinnell helped tame the western U.S., establishing a number of national parks as tourism hubs. He brings this knowledge to bear in

In 'Jack the Young Explorer: A Boy's Experiences in the Unknown Northwest' by George Bird Grinnell, readers are immersed in the thrilling adventures of a young

In 'Jack the Young Cowboy: An Eastern Boy's Experience on a Western Round-up' by George Bird Grinnell, readers are transported to the American West in the late

In 'Jack North's Treasure Hunt; Or, Daring Adventures in South America' by Roy Rockwood, readers are taken on an exhilarating journey through the wild landscape