The Superstition Mountains were not "created" in the sense of being built or formed by humans. They are a geological formation that arose over millions of years through natural processes.

Here's a breakdown of their formation:

* Millions of Years Ago: The Superstition Mountains are part of the Mazatzal Mountains, which formed during the Paleozoic Era (around 540 to 250 million years ago).

* Volcanic Activity: Volcanic activity played a significant role in their formation, with lava flows, ash deposits, and intrusive igneous rocks shaping the landscape.

* Erosion and Uplift: Over time, erosion from wind, water, and ice sculpted the mountains into their current form. Uplift from tectonic forces also contributed to their elevation.

Therefore, there's no specific date for their "creation." They are the result of a long, ongoing geological history.