The County was named after Mason Greenlee, an early day mining man. The County is 120 miles long and 20 miles wide it covers 1,837 square miles, and has a population of 8,800. The majority of the land is government owned.

The Forest Service controls 63.5 percent; the Bureau of Land Management controls 13.6 percent; the State of Arizona controls 14.8; and individual or corporate ownership is 8.1 percent.

The topography consists of desert terrains, river valley, and high mountain ranges. Mining and stock raising are the principal industries. The copper industry has been an important industry in Greenlee County and the State of Arizona for more than 130 years.

In recent years, more people are discovering the many rich and varied scenic and recreational delights to be found here.