by Mark Twain
by William Clark, Meriwether Lewis
by Thomas Jefferson Farnham
by Zebulon Montgomery Pike
by Francis Parkman
by James Fowler Rusling
by Elliott Coues, Zebulon Montgomery Pike
by William Clark, Meriwether Lewis
by Isabella L. (Isabella Lucy) Bird
by Zebulon Montgomery Pike
by Robert Louis Stevenson
by Randolph B. (Randolph Barnes) Marcy
by James Otis
by Edmund Flagg, Pierre-Jean de Smet
by Benjamin Louis Eulalie de Bonneville, Washington Irving
by Charles Warren Stoddard
by Zane Grey
by John Muir
by Edwin James, Stephen H. (Stephen Harriman) Long, Thomas Say
by Noah Brooks
by W. E. (William Edward) Webb
by Ethel Lynn
by Winifred Hawkridge Dixon
by Frederic Remington
by Edwin Bryant
by John Charles Frémont
by Charles E. (Charles Edward) Young
by Frances Marie Antoinette Mack Roe
by Mark Twain
by Lilian Whiting
by Frederick Samuel Dellenbaugh
by Frances Fuller Victor
by Mark Twain
by Buffalo Bill, Henry Inman
by John Kirk Townsend, John B. (John Bound) Wyeth
by Mark Twain
by Henry J. (Henry John) Coke
by Southern Pacific Company. Passenger Department, Union Pacific Railroad Company. Passenger Department
by Mark Twain
by Conrad Malte-Brun, James O. (James Ohio) Pattie, Dr. Willard
by Grace Gallatin Seton-Thompson
by Albert W. (Albert Wadsworth) Harris
by Richard Harding Davis
by George Bird Grinnell
by Pierre-Jean de Smet
by George Frederick Augustus Ruxton
by George Frederick Augustus Ruxton
by Edwin James, Stephen H. (Stephen Harriman) Long, Thomas Say
by Thomas Jefferson Farnham, Pierre-Jean de Smet
by Mark Twain
by Auguste Nicaise
by Edwin James, Stephen H. (Stephen Harriman) Long, Thomas Say
by George W. Romspert
by Ernest Ingersoll
by Phil Robinson
by Mark Twain
by John (John R.) Peele
by Jacob Fowler
by Mark Twain
by Maturin M. (Maturin Murray) Ballou
by Mark Twain
by Mark Twain
by Alfred Lambourne
by William Clark, Meriwether Lewis
by Mark Twain
by Sarah Raymond Herndon
by Edwin James, Stephen H. (Stephen Harriman) Long, Thomas Say
by Stephen Graham, Vachel Lindsay
by K. E. M. (Kate Ethel Mary) Dumbell