### Question
What is the definition of Southern Arizona?


### Answer
The definition of **Southern Arizona** is as follows in *43 U.S.C. § 390h*:

> those portions of the counties of Pima, Santa Cruz, and Pinal within the Tucson Active Management Hydrologic Area as defined by the Arizona Department of Water Resources

#### Citation:
  - *43 U.S.C. § 390h*
  - Heading: **CHAPTER 12-RECLAMATION AND IRRIGATION OF LANDS BY FEDERAL GOVERNMENT > SUBCHAPTER I-GENERAL PROVISIONS**

