inbetween the oregon country, spain territory and illinois territory and mississippi territory.
The Columbia River forms part of the border between Washington State and Oregon. Both of these states are West of the Mississippi River.
The Louisiana Purchase and Oregon are divided by the Rocky Mountains.
Westward of the Mississippi River (In Mississippi)
The Oregon Trail led to the Willamette Valley of Oregon.The Oregon Trail was a dirt wagon road that went from St. Louis, Missouri, up the Mississippi along the banks of the the Mississippi River to the Missouri. It went to the North Platt. From there it went through South Pass on through Idaho to the Columbia River and from there, along the banks of the Columbia to the Willamette Valley of Oregon.
· Yamuna (India) · Yazoo (Mississippi) · Yellow (China) · Yellowstone (Missouri) · Yenisey (Russia) · York (Maine) · Youngs (Oregon) · Yuba (California) · Yukon (Alaska)
It took 22 days to cross the river on the Oregon trail.
The Mississippi River
Yes, Vicksburg is on the Mississippi.
I think it is the Mississippi River but not for sure
The Mississippi River forms the boundary between Illinois and Missorui
They sailed up the Columbia River from the Pacific Ocean to the interior of Oregon, but, they had to walk over the Rocky Mountains by foot. There is no river that goes from the Pacific Ocean to the Missouri/Mississippi river. They did not take a boat from Oregon down the Pacific side of the Americas and back to Washington DC. (around the southern tip of South America).