The cascade mountains run north and south through the middle of both washington and oregon. the west side of these mountains (seaward facing) receives an abundance of rain while the east side (inland facing) is remarkably dry. this sharp climate change from one side to the other is largely the result of:

Cascade mountain is mountain located in Bow river valley. extends from southern british columbia to washington the western side of the mountain is windy and eastern side is dry due to it acts as a barrier to the force of winds.

Explanation:

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.