Where did the trail that settlers took to reach this city leave the oregon trail

Elm Grove. If that's not the answer you were looking for its because your questions is kind of worded weird so I'm a bit confused.

But the Oregon Trail took them west along the Platte River through the Rocky Mountains via the easy South Pass in Wyoming and then northwest to the Columbia River. That's sorta how the pioneers or "settlers" came to call the route the Oregon Trail