Tags
- A
- Activism
- Alameda County, California
- Alexander von Humboldt
- Allegheny Mountains
- Alpine County, California
- Amador County, California
- American bison
- American Civil War
- American River
- Antarctica
- Appalachian Trail
- Arizona
- Arizona Trail
- Atchison, Kansas
- Auburn, California
- Auburn, Wyoming
- Bacon
- Bakersfield, California
- Bartleson–Bidwell Party
- Beans
- Bear River
- Beaver
- Berkeley, California
- Bicycle-friendly
- Big Basin Redwoods State Park
- Black Kettle
- Black pepper
- Black Rock Desert
- Blacksmith
- Bleeding Kansas
- Bonneville Salt Flats
- Box Elder County, Utah
- Bridle
- Brigham Young
- Brownsville, Pennsylvania
- Bureau of Land Management
- Burke Act
- Butterfield Overland Mail
- Cache Valley
- Calaveras County, California
- California
- California Genocide
- California Gold Rush
- California Republic
- California Road
- California State Route 108
- California State Route 162
- California State Route 178
- California State Route 20
- California State Route 49
- California State Route 70
- California Water Wars
- Californio
- Cape Horn
- Captain
- Carpentry
- Carson City, Nevada
- Cartography
- Casper, Wyoming
- Central Pacific Railroad
- Central Valley
- Centrocercus
- Chico, California
- Chimney Rock National Historic Site
- Cholera
- Chula Vista, California
- Cinnamon
- Cirque
- Citizenship
- Citizenship of the United States
- Colorado River
- Columbia River
- Colusa County, California
- Comstock Lode
- Concord, California
- Conestoga wagon
- Conquest of California
- Constitution of California
- Continental divide
- Continental Divide Trail
- Contra Costa County, California
- Cornmeal
- Corona, California
- Corps of Topographical Engineers
- Costa Mesa, California
- Council Bluffs, Iowa
- Covered wagon
- Cow dung
- Crescent City, California
- Cross-City Line
- Dairy cattle
- Debt limit
- Deer
- Del Norte County, California
- Devil's Gate
- Donner Lake
- Donner Party
- Donner Pass
- Downey, California
- Dried fruit
- Drying
- Duck
- Dutch oven
- Eastern California
- El Camino Real de los Tejas National Historic Trail
- El Centro, California
- El Dorado County, California
- Elite
- Elk
- Elk Grove, California
- Elko, Nevada
- El Monte, California
- Ely, Nevada
- Escondido, California
- Etymology of California
- Eureka, California
- Fact
- Fairfield, California
- Fallon, Nevada
- Feces
- Federal Bureau of Investigation
- Fe Oregon
- Firing
- First Transcontinental Railroad
- First transcontinental telegraph
- Five
- Flint
- Florida Trail
- Folsom, California
- Fontana, California
- Food preservation
- Fort Astoria
- Fort Hall
- Fort Hall, Idaho
- Fortification
- Fort Kearny
- Fort Laramie
- Fort Laramie National Historic Site
- Fort Sumter
- Fremont, California
- Fresno, California
- Fresno County, California
- Fullerton, California
- Fur
- Genoa, Nevada
- Gerlach, Nevada
- Germ theory of disease
- Gila River
- Glendale, California
- Glenn County, California
- Google Books
- Goose
- Goose Lake
- Great Basin
- Great Basin Desert
- Great Salt Lake
- Green River
- Gunpowder
- Gutta-percha
- Hayward, California
- Hide
- Historic trails
- History of California
- History of California before 1900
- History of Los Angeles
- History of Oakland, California
- History of San Diego
- History of San Francisco
- History of slavery in California
- Hobble
- Hoist
- Hollister, California
- Hope Valley
- Horace Greeley
- Hudson's Bay Company
- Humboldt County, California
- Huntington Beach, California
- Ice Age Trail
- Idaho
- Iditarod Trail
- Imperial County, California
- Independence Day
- Independence, Missouri
- Indigenous peoples of California
- Informant
- Inglewood, California
- Interesting facts
- International Standard Book Number
- Interstate 5
- Interstate 80
- Interstate 80 in California
- Inyo County, California
- Irvine, California
- Isthmus of Panama
- Jackson, California
- James K. Polk
- Jedediah Smith
- Jerky
- Jessie Benton Frémont
- Jim Bridger
- John C. Frémont
- John Jacob Astor
- Jordan River
- Juan Bautista de Anza National Historic Trail
- Kansa
- Kansas
- Kansas City, Kansas
- Kansas City metropolitan area
- Kansas River
- Kern County, California
- Kirkwood Mountain Resort
- Kit Carson
- Lake County, California
- Lakeport, California
- Lake Tahoe
- Lancaster, California
- Lassen County, California
- Lassen Peak
- Lassen Volcanic National Park
- Laudanum
- Law
- Lawrence, Kansas
- Leather
- Leavenworth, Kansas
- Legislature
- Level crossing
- Lincoln Highway
- Lompoc, California
- Long Beach, California
- Los Angeles
- Los Angeles County, California
- Lost River
- Lovelock
- Lovelock, Nevada
- Madera, California
- Madera County, California
- Mama Say
- Mariposa County, California
- Markleeville, California
- Mark Twain
- Martinez, California
- Martin November
- Marysville, California
- Mendocino County, California
- Merced, California
- Merced County, California
- Mexican–American War
- Mexico
- Microorganism
- MicroScope
- Midlands
- Mississippi River
- Missouri River
- Misuse
- Moccasin
- Modesto, California
- Modoc County, California
- Mojave River
- Mono County, California
- Monterey, California
- Monterey County, California
- Montpelier, Idaho
- Moreno Valley, California
- Mormon Battalion
- Most
- Mountain man
- Mount Rushmore
- Mule
- Mustard
- Napa, California
- Napa County, California
- National Historic Trail
- National historic trails
- National Park Service
- National Recreation Trail
- National Scenic Trail
- National Trail
- National Trails
- Native
- Native American
- Natural rubber
- Near
- Nebraska
- Network Rail
- Nevada
- Nevada City, California
- Nevada County, California
- New England National Scenic Trail
- New Mexico Territory
- New Orleans
- New York City
- Nicaragua
- North Country Trail
- North Platte River
- Nutmeg
- Oceanside, California
- Ogden, Utah
- Ohio River
- Old Spanish Trail
- Omaha, Nebraska
- Ontario, California
- Orange, California
- Orange County, California
- Oregon
- Oregon Country
- Oregon Pioneer
- Oregon Territory
- Oregon Trail
- Oroville, California
- Owens Lake
- OX
- Oxnard, California
- Pacific Crest Trail
- Pacific Squadron
- Packhorse
- Pack Train
- Paddle steamer
- Palmdale, California
- Panama
- Panama Canal Railway
- Pancake
- Parowan, Utah
- Patriotism
- Pemmican
- Peter Skene Ogden
- Pilot Peak
- Pioneer Base Ball Club
- Pit River
- Pittsburgh
- Placer County, California
- Placerville, California
- Platte River
- Plumas County, California
- Pollock Pines, California
- Pomona, California
- Pony
- Pony Express
- Potomac Heritage Trail
- Pronghorn
- Pyramid Lake
- Rail
- Rancho Cucamonga, California
- Red Bluff, California
- Redding, California
- Reno, Nevada
- Resting Springs
- Richard Francis Burton
- Rifle
- Riverside County, California
- Robert Stuart
- Rocky Mountain Fur Company
- Roseville, California
- Roughing It
- Ruby Mountains
- Rushmore
- Sacramento, California
- Sacramento County, California
- Sacramento River
- Sacramento Valley
- Saddle
- Salinas, California
- Salmon
- Salt Lake City
- Salt River
- San Benito County, California
- San Bernardino County, California
- San Diego County, California
- San Joaquin County, California
- San Luis Obispo, California
- San Luis Obispo County, California
- San Mateo County, California
- San Rafael, California
- Santa Ana, California
- Santa Barbara County, California
- Santa Clara, California
- Santa Clarita, California
- Santa Cruz, California
- Santa Cruz County, California
- Santa Fe Trail
- Santa Maria, California
- Scandalous
- Scenic route
- Scotts Bluff National Monument
- Scurvy
- Seawater
- Selma to Montgomery marches
- Shasta, California
- Shasta County, California
- Shoshone
- Shotgun
- Sierra Nevada
- Simi Valley, California
- Siskiyou County, California
- Snake River
- Soda Springs, Idaho
- Sodium bicarbonate
- Solano County, California
- Sonoma County, California
- Sonora, California
- South Dakota
- Southern California
- South Pass
- South Platte River
- Spanish missions in California
- Sparks, Nevada
- Stampede
- Standing Rock
- Stanislaus National Forest
- Stanislaus River
- Star Valley
- Stateline, Nevada
- Steamboat
- Stephens-Townsend-Murphy Party
- St. Joseph, Missouri
- St. Louis
- Stockton, California
- Strait of Magellan
- Sunnyvale, California
- Susanville, California
- Sutter County, California
- Tar
- Tehachapi Pass
- Tehama County, California
- The wall
- Thomas Fitzpatrick
- Thousand Oaks, California
- Tioga Pass
- Tobacco
- Toll road
- Tonquin
- Topography
- Torrance, California
- Trail
- Trail of Tears
- Trailside Center
- Trapping
- Treaty of Guadalupe Hidalgo
- Tripoint
- Trout
- Truckee, California
- Truckee Meadows
- Truckee River
- Tulare County, California
- Tuolumne County, California
- Ukiah, California
- Union Pacific Railroad
- United States Army
- United States Army Corps of Engineers
- United States Congress
- United States Department of War
- United States Military Academy
- U.S. Route 30
- U.S. Route 395
- U.S. Route 395 in California
- U.S. Route 40
- U.S. Route 50 in California
- U.S. Route 50 in Nevada
- U.S. Route 93
- U.S. Route 95
- Utah
- Utah War
- V
- Vallejo, California
- Ventura, California
- Ventura County, California
- Victorville, California
- Vinegar
- Virginia City, Nevada
- Virgin River
- Vitamin C
- V-Train
- Walker River
- Warn
- Wasatch Range
- Washington Irving
- Water trail
- Wayback Machine
- Wells, Nevada
- West Coast of the United States
- Western Nevada
- Western United States
- West Midlands
- West Virginia
- Westward Expansion Trails
- Westward the Women
- What
- Wild West
- Willamette Valley
- Wind River Range
- Winnemucca, Nevada
- Woodland, California
- Wool
- Wyoming
- Wyoming Range
- Yolo County, California
- Yosemite National Park
- Yreka, California
- Yuba City, California
- Yuba County, California
- Yuba River