<P> While the first few parties organized and departed from Elm Grove, the Oregon Trail's primary starting point was Independence, Missouri, or Westport, (which was annexed into modern day Kansas City), on the Missouri River . Later, several feeder trails led across Kansas, and some towns became starting points, including Weston, Fort Leavenworth, Atchison, St. Joseph, and Omaha . </P> <P> The Oregon Trail's nominal termination point was Oregon City, at the time the proposed capital of the Oregon Territory . However, many settlers branched off or stopped short of this goal and settled at convenient or promising locations along the trail . Commerce with pioneers going further west helped establish these early settlements and launched local economies critical to their prosperity . </P> <P> At dangerous or difficult river crossings, ferries or toll bridges were set up and bad places on the trail were either repaired or bypassed . Several toll roads were constructed . Gradually the trail became easier with the average trip (as recorded in numerous diaries) dropping from about 160 days in 1849 to 140 days 10 years later . </P> <P> Many other trails followed the Oregon Trail for much of its length, including the Mormon Trail from Illinois to Utah; the California Trail to the gold fields of California; and the Bozeman Trail to Montana . Because it was more a network of trails than a single trail, there were numerous variations with other trails eventually established on both sides of the Platte, North Platte, Snake, and Columbia rivers . With literally thousands of people and thousands of livestock traveling in a fairly small time slot the travelers had to spread out to find clean water, wood, good campsites, and grass . The dust kicked up by the many travelers was a constant complaint, and where the terrain would allow it there may be between 20 and 50 wagons traveling abreast . </P>

How long did it take pioneers on the oregon trail