the great salt lake and the great salt lake desert are in:

A: Basan and range region.

B: Rocky Mountain region.

C: Colorado plateau region.

D: Columbia snake river plateau region.

C: Colorado plateau region.

To find out where the Great Salt Lake and the Great Salt Lake Desert are located, we can use online resources such as search engines or maps. Let's go through the options together and eliminate the incorrect ones:

Option A: Basin and Range Region: The Basin and Range Region is located in the western United States, covering parts of Nevada, Utah, Arizona, and California. While part of the Great Salt Lake Desert falls in the Basin and Range Region, the Great Salt Lake itself is not located in this region. So, we can eliminate option A.

Option B: Rocky Mountain Region: The Rocky Mountain Region is a vast area that extends from the Canadian border down to New Mexico. The Great Salt Lake and the Great Salt Lake Desert are located west of the Rocky Mountains, so this option is not correct. We can eliminate option B.

Option C: Colorado Plateau Region: The Colorado Plateau is a region that covers parts of several states, including Utah, Colorado, Arizona, and New Mexico. The Great Salt Lake and the Great Salt Lake Desert are indeed located in Utah, which is part of the Colorado Plateau. This makes option C a possible correct answer.

Option D: Columbia Snake River Plateau Region: The Columbia Snake River Plateau is located in the northwestern United States, primarily in Washington, Oregon, and Idaho. The Great Salt Lake and the Great Salt Lake Desert are not located in this region. Hence, option D is not correct.

From our analysis, we can conclude that the correct answer is:

C: Colorado Plateau Region.

The Great Salt Lake and the Great Salt Lake Desert are located in the C: Colorado Plateau region.