Lake Montezuma is a census-designated place (CDP) in Yavapai County in Arizona. The population was 3,344 at the 2000 census. The CDP includes the communities of Rimrock and McGuireville. Located along Interstate 17, it is 20 miles (32 km) south of Sedona and 8 miles (13 km) north of Camp Verde in central Arizona’s Verde Valley.
The community was originally known as Beaver Creek as ranchers and farmers settled along the banks of the creek named for the prolific numbers of beavers found there.
Then later the area generally became known as Rimrock in 1928 when Virginia Finnie, the daughter of a prominent local rancher, married Romaine Lowdermilk and the couple along with partner Russell Boardman started a dude ranch originally called Rimrock Lodge later known as Rimrock Dude Ranch. It was so named for the prominent limestone rimrocks forming the edges of the mesas visible from the hill top ranch.