Montezuma Well, Montezuma Castle, & Tuzigoot were all settlements of the Sinagua culture in the Verde River Valley in modern-day Arizona. Like their Hohokam neighbors to the south, they fortified their settlements around 1350 AD, & abandoned them around 1400.
Probably not a coincidence that the Apache & Navajo arrived in the American Southwest in 1400s: https://archserve.id.ucsb.edu/courses/rs/natlink/apache/apa_intro3.htm
Cultures of the medieval American Southwest (left, Sinagua in blue), & forts & pueblos of the Verde River Valley (right)
Sinagua culture mined azurite & malachite, & imported argilite for their coloring/dyeing properties: blue, green, & red respectively.
Mid-Verde River (near Tuzigoot) is a good place for farming. Sinagua culture people dug irrigation canals to water their crops, & sustained a population of perhaps 6,000-8,000 in the area.
Sinagua people used agave plants extensively. The could be eaten several ways, harvested for fiber for threads in clothes, converted into baskets, or made into rope.
Sinagua community around Montezuma Well dug irrigation canals from the spring to water their fields as far as 7 miles, & coated the canals with limestone. Unfortunately the well has high arsenic levels, probably poisoning the community slowly.