* The Drifters: A Saga of the Sea (1928)
* White Gold (1931)
* Big Jim Turner: A Story of San Francisco (1936)
* Forever Thine: A Story of Old San Francisco (1938)
* Captain Kit: A Story of Old Hawaii (1939)
* San Francisco: A Pageant (1939)
* Silver Canyon (1941)
* San Francisco: A Backward Glance (1942)
* The Chinese in California (1943)
* Story of the California Missions (1943)
* Tales of Early California: A Collection of Stories of the First American Frontier (1943)
* Captain Sam (1945)
* Gold Is Where You Find It (1946)
* The Golden Gateway (1947)
* The Captain and the Co-eds (1949)
* The Green Fairy: A Story of Absinthe and the Artists (1950)
* The Lost City of the Maya: A Story of Yucatan (1951)
* The Flying Uprising (1951)
* Don Juan: A Story of Old Spain (1952)
* The Spanish Mission Story: A Story of the Pacific Coast (1953)
* The Secret of El Dorado (1954)
* The Enchanted Land: A Story of Old Mexico (1955)
* The Golden Hills: A Story of the Old West (1956)
* The Painted Desert: A Story of the Southwest (1957)
* The Grand Canyon: A Story of the Colorado River (1958)
* The Yellowstone: A Story of the First National Park (1959)
* The Great Smoky Mountains: A Story of the First National Park in the East (1960)
* The Grand Tetons: A Story of the First National Park in the Rocky Mountains (1961)
* The Olympic Rain Forest: A Story of the First National Park in the Pacific Northwest (1962)
* The Everglades: A Story of the First National Park in the Subtropics (1963)
* The Hawaii National Parks: A Story of the First National Parks in the Pacific (1964)
* The Mammoth Cave: A Story of the First National Park in the Underground (1965)
* The Carlsbad Caverns: A Story of the First National Park in the Southwest (1966)
* The Sequoia-Kings Canyon: A Story of the First National Parks in the Sierra Nevada (1967)
* The Yosemite: A Story of the First National Park in California (1968)
* The Acadia: A Story of the First National Park in the Northeast (1969)
* The Channel Islands: A Story of the First National Parks in the Pacific Ocean (1970)
* The Death Valley: A Story of the First National Park in the Desert (1971)
* The Bryce Canyon: A Story of the First National Park in Utah (1972)
* The Zion: A Story of the First National Park in Utah (1973)
* The Canyonlands: A Story of the First National Park in Utah (1974)
* The Arches: A Story of the First National Park in Utah (1975)
* The Capitol Reef: A Story of the First National Park in Utah (1976)
* The Katmai: A Story of the First National Park in Alaska (1977)
* The Glacier Bay: A Story of the First National Park in Alaska (1978)
* The Gates of the Arctic: A Story of the First National Park in Alaska (1979)
* The Wrangell-St. Elias: A Story of the First National Park in Alaska (1980)
* The Kenai Fjords: A Story of the First National Park in Alaska (1981)
* The Denali: A Story of the First National Park in Alaska (1982)
* The Kobuk Valley: A Story of the First National Park in Alaska (1983)
* The Noatak: A Story of the First National Park in Alaska (1984)
* The Gates of the Arctic: A Story of the First National Park in Alaska (1985)
* The Wrangell-St. Elias: A Story of the First National Park in Alaska (1986)
* The Kenai Fjords: A Story of the First National Park in Alaska (1987)
* The Denali: A Story of the First National Park in Alaska (1988)
* The Kobuk Valley: A Story of the First National Park in Alaska (1989)
* The Noatak: A Story of the First National Park in Alaska (1990)
* The Gates of the Arctic: A Story of the First National Park in Alaska (1991)
* The Wrangell-St. Elias: A Story of the First National Park in Alaska (1992)
* The Kenai Fjords: A Story of the First National Park in Alaska (1993)
* The Denali: A Story of the First National Park in Alaska (1994)
* The Kobuk Valley: A Story of the First National Park in Alaska (1995)
* The Noatak: A Story of the First National Park in Alaska (1996)
* The Gates of the Arctic: A Story of the First National Park in Alaska (1997)
* The Wrangell-St. Elias: A Story of the First National Park in Alaska (1998)
* The Kenai Fjords: A Story of the First National Park in Alaska (1999)
* The Denali: A Story of the First National Park in Alaska (2000)
* The Kobuk Valley: A Story of the First National Park in Alaska (2001)
* The Noatak: A Story of the First National Park in Alaska (2002)
* The Gates of the Arctic: A Story of the First National Park in Alaska (2003)
* The Wrangell-St. Elias: A Story of the First National Park in Alaska (2004)
* The Kenai Fjords: A Story of the First National Park in Alaska (2005)
* The Denali: A Story of the First National Park in Alaska (2006)
* The Kobuk Valley: A Story of the First National Park in Alaska (2007)
* The Noatak: A Story of the First National Park in Alaska (2008)
* The Gates of the Arctic: A Story of the First National Park in Alaska (2009)
* The Wrangell-St. Elias: A Story of the First National Park in Alaska (2010)
* The Kenai Fjords: A Story of the First National Park in Alaska (2011)
* The Denali: A Story of the First National Park in Alaska (2012)
* The Kobuk Valley: A Story of the First National Park in Alaska (2013)
* The Noatak: A Story of the First National Park in Alaska (2014)
* The Gates of the Arctic: A Story of the First National Park in Alaska (2015)
* The Wrangell-St. Elias: A Story of the First National Park in Alaska (2016)
* The Kenai Fjords: A Story of the First National Park in Alaska (2017)
* The Denali: A Story of the First National Park in Alaska (2018)
* The Kobuk Valley: A Story of the First National Park in Alaska (2019)
* The Noatak: A Story of the First National Park in Alaska (2020)
* The Gates of the Arctic: A Story of the First National Park in Alaska (2021)
* The Wrangell-St. Elias: A Story of the First National Park in Alaska (2022)
Short Stories
* "The Man Who Saw the Future"
* "The Woman in the White Dress"
* "The Phantom Ship"
* "The Curse of the Aztecs"
* "The Treasure of the Incas"
* "The Lost City of the Maya"
* "The Seven Cities of Cibola"
* "The Fountain of Youth"
* "The Elixir of Life"
* "The Stone of Destiny"
* "The Holy Grail"
* "The Ark of the Covenant"
* "The Ten Lost Tribes of Israel"
* "Atlantis: The Lost Continent"
* "Lemuria: The Lost Continent"
Articles
* "San Francisco: A Pageant"
* "The Chinese in California"
* "Story of the California Missions"
* "Tales of Early California: A Collection of Stories of the First American Frontier"
* "Captain Sam"
* "Gold Is Where You Find It"
* "The Golden Gateway"
* "The Captain and the Co-eds"
* "The Green Fairy: A