Rae Lakes City is a fictional city mentioned in the book "The Journals of Lewis and Clark" by author John L. Allen. It is described as a small settlement located near the Rae Lakes in the Sierra Nevada Mountains of California. The city is said to have been established in the early 1800s and served as a trading post for fur trappers and explorers during the Westward Expansion period. However, it is important to note that Rae Lakes City is not a real city and exists only in the context of the book.