For 10 points, name this 2,170 mile long trail that went from Missouri to its namesake West Coast state.
This entity's "champion" was Ezra Meeker, who placed markers along it. Francis Parkman wrote a history of this route. This path was first traveled by a family when used by Joel Walker. One thousand people were led on this route by Marcus Whitman in the "Great Migration." This trail began at Independence, Missouri, where pioneers would take prairie schooners to prepare to travel along it. For 10 points, name this 2,170 mile long trail that went from Missouri to its namesake West Coast state.
This entity's "champion" was Ezra Meeker, who placed markers along it.
{Oregon Trail}