USA HISTORY

Detailed explanation-1: -The towering Rocky Mountains represented the most physically challenging portion of the Oregon Trail. Travelers along the trail were forced to pass the Rocky Mountains in western Wyoming and Idaho, and then the Cascades Range in Oregon.

Detailed explanation-2: -The trail from Independence to Oregon City crossed portions of six present-day states. The first 16 miles were in Missouri, then the trail crossed into Kansas for 165 miles, Nebraska for 424 miles, Wyoming for 491 miles, Idaho for 510 miles and finally Oregon for 524 miles.

Detailed explanation-3: -Answer and Explanation: The Oregon Trail crossed the Rocky Mountains at the South Pass, where travelers crossed the Continental Divide. This route took them from plains through the mountains. People traveling this route eventually had to route to either California or Oregon.

Detailed explanation-4: -The Oregon Trail was a roughly 2, 000-mile route from Independence, Missouri, to Oregon City, Oregon, that was used by hundreds of thousands of American pioneers in the mid-1800s to emigrate west. The trail was arduous and snaked through Missouri and present-day Kansas, Nebraska, Wyoming, Idaho and finally into Oregon.