BIOGRAPHICAL ITEM
Cary Collins, Charles Vincent Mutschler, 1955–2019 In Memoriam, p. 3.

ARTICLES
Austin Allison, A Spring Sprung It: Tracing and Understanding the True Genesis of North America’s Longest River, p. 6.

Leonard Engel, Ed Abbey, The Thoreau of the American West: Down the River and on the Open Road with Thoreau, Whitman, and Abbey, p. 22.

Sherry O. Farwell, Alvin L. Cordell, John M. Butrymowicz, 1865 Powder River Crisis in Montana Territory, p. 28.

EDITORIAL MATERIAL
Lonnie E. Underhill, Hamlin Garland and the Vitagraph Moving-Picture Company, 1916–1918, p. 56.

REVIEW
Nathaniel Otjen, Rewriting the Urban: Frederick L. Brown’s Animal History of Seattle, p. 75.

BOOK REVIEWS
Robert L. Dorman, Boom Town: The Fantastical Saga of Oklahoma City, Its Chaotic Founding, Its Apocalyptic Weather, Its Purloined Basketball Team, and the Dream of Becoming a World-Class Metropolis, p. 78.

Keith A. Sculle, The Big Wild Soul of Terrence Cole: An Eclectic Collection to Honor Alaska’s Public Historian, p. 78.

Christopher Banner, With Distance in His Eyes: The Environmental Life and Legacy of Stewart Udall, p. 79.

Mark T. Johnson, Seismic City: An Environmental History of San Francisco’s 1906 Earthquake, p. 79.

Christopher Capozzola, Painters of the Northwest: Impressionism to Modernism, 1900–1930, p. 80.

Mark T. Johnson, Plains Indian Buffalo Cultures: Art from the Paul Dyck Collection, p. 80.

Cary C. Collins, Reservations, Removal, and Reform: The Mission Indian Agents of Southern California, 1878–1903, p. 81.

Doris Morgan Rueda, The Other Side of Assimilation: How Immigrants Are Changing American Life, p. 81.

Ron Briley, The Myth of Silent Spring: Rethinking the Origins of American Environmentalism, p. 82.

Cary C. Collins, The Unknowns: The Untold Story of America’s Unknown Soldier and WWI’s Most Decorated Heroes Who Brought Him Home, p. 83.

Keith A. Sculle, The Making of America’s Cultural Regions, p. 83.

Cary C. Collins, Beyond Hawai‘i: Native Labor in the Pacific World, p. 84.

Cary C. Collins, Barons of the Sea: And Their Race to Build the World’s Fastest Clipper Ship, p. 85.

Michael Maben, The Klondike Stampede: As It Appeared to One of the Thousands of Cheechacos Who Participated in the Mad Rush of 1898–1899, p. 85.

Cary C. Collins, Pacific Coast: Seattle’s Own Railroad, p. 86.

Ron Briley, Land of Nuclear Enchantment: A New Mexican History of the Nuclear Weapons Industry, p. 87.

Ron Briley, Mark Twain Among the Indians and Other Indigenous Peoples, p. 87.

Abraham Hoffman, Gold Rush Manliness: Race and Gender on the Pacific Slope, p. 88.

Patricia Ann Owens, Visions of the Tallgrass: Prairie Photographs by Harvey Payne, p. 89.