Independence, Missouri — nicknamed the "Queen City of the Trails" — served as the primary jumping-off point for westward emigrants heading out on the California, Oregon, and Santa Fe Trails during the great mid-19th-century migration. Located in Jackson County and today a satellite city of Kansas City, Independence had a 2020 population of approximately 123,011, making it the fifth-most populous city in Missouri. Visitors today can explore its rich frontier heritage alongside sites connected to President Harry S. Truman, whose presidential library and gravesite are located here. In Expedition Unknown's S10E13, "Donner Party Horror and Heroes," Gates uses Independence as the dramatic starting line of the Donner Party's story — the last relatively safe place the group would know before their catastrophic journey west.
Independence is founded and eventually designated a county seat of Jackson County, Missouri.
Joseph Smith designates Independence as sacred to the Latter Day Saint movement, establishing the Temple Lot site.
Independence becomes the primary departure point for emigrants heading west on the California, Oregon, and Santa Fe Trails, earning its nickname 'Queen City of the Trails.'
On May 12, the Donner Party — a wagon train of 87 people and 20 ox-drawn wagons — departs Independence bound for California, beginning their ill-fated journey.
Gates investigates the Donner Party story in Expedition Unknown S10E13, "Donner Party Horror and Heroes," citing Independence as the group's point of origin.
Independence in the 1840s occupied a uniquely consequential role in American westward expansion. As the easternmost practical launch point for the overland trails, it was where emigrants gathered supplies, organized wagon trains, and made their final preparations before crossing the Missouri River and heading into the frontier. Historians regard it as the symbolic and logistical gateway of Manifest Destiny — a place where ordinary American families made extraordinary, and sometimes fatal, decisions.
The Donner Party's May 12, 1846 departure from Independence places the town at the very beginning of one of the most documented tragedies in frontier history. According to the episode's narration, the group was already carrying the seeds of its disaster before leaving: Lansford Hastings' "Emigrants' Guide to Oregon and California," a pamphlet the episode describes as the work of 'a real estate investor' who had 'never actually tested' the shortcut he was promoting. The guide's promise of trimming 300 miles from the journey via the Hastings Cutoff would prove catastrophic.
Mainstream historians have long debated the relative weight of factors in the Donner Party disaster — late departure, poor leadership, an untested route, and the brutal 1846–47 Sierra Nevada winter all contributed. The episode's narration pointedly notes that George Donner, elected leader near the Little Sandy River in Wyoming, was 'by all accounts the exact wrong man for the job: professional, soft-spoken, gentle and charitable.' Whether stronger leadership could have altered the outcome remains a genuine point of historical discussion.
Gates' episode uses Independence less as a site to be investigated in its own right and more as a narrative anchor — the last firm ground beneath the Donner Party's feet before events spiraled beyond their control. The episode's contribution is in humanizing the emigrants as ordinary working families (a carriage maker, a furniture manufacturer, a farmer) rather than reckless adventurers, a framing that aligns with how many modern historians approach the story.
Independence is nicknamed the 'Queen City of the Trails' because it served as a departure point for three major westward routes: the California, Oregon, and Santa Fe Trails.
Independence is the hometown of U.S. President Harry S. Truman, and his presidential library, museum, and gravesite — shared with First Lady Bess Truman — are located here.
The city is considered sacred by several Latter Day Saint denominations; Joseph Smith designated the area as a significant religious site in 1831.
As of the 2020 census, Independence had a population of approximately 123,011, making it the fifth-most populous city in Missouri and the largest suburb on the Missouri side of the Kansas City metro area.
Independence is a functioning city and generally accessible to visitors year-round. The Truman Presidential Library and Museum is a major draw, and the city's frontier trail heritage is commemorated through local museums and historic districts. Visitors interested in the emigrant trail history should check current hours and programming for trail-related interpretive sites.
Kansas City, Missouri, approximately 10 miles to the west.
Spring and early fall offer the most comfortable weather for exploring Independence's outdoor historic sites. Summers can be warm and humid, reflecting the Great Plains climate of the Missouri River valley.
Coffeyville, Kansas
Coffeyville, Kansas is another American frontier town investigated by Gates with deep connections to the westward expansion era and the lawless edges of 19th-century American history.
Alta
Alta, Utah lies near the route of the Hastings Cutoff across the Great Salt Lake desert — the fateful shortcut that the Donner Party chose after leaving Independence, and a key location in the episode's investigation.
Historical data sourced from Wikipedia