33955 S Old Black Canyon Highway Black Canyon City, AZ 85324
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Place Display Panel from Agua Fria Watershed Display - one of 4 panels developed as companion exhibit to the Smithsonian Water/Ways Exhibit hosted in Black Canyon City.


  1. Home - Agua Fria Watershed
  2. Sonoran Desert Riparian Cross-Section - Cross-Section graphic with zones identified
  3. Types of Water Ways -
    1. Description of the types of waters that in the Agua Fria water channels.
    2. Overview of the Wet-Dry Mapping used document the presence or absence of surface water.
    3. Resources for more information

Terms for Place Section

Aquifer - Arizona Administrative Code defines aquifer boundaries for Arizona - Section R18-11-502 - Aquifer Boundaries

Groundwater: Groundwater is water found underground in the cracks and spaces in soil, sand and rock

Hydrologic Units:  The intent of defining hydrologic units (HU) for the Watershed Boundary Dataset is to establish a base-line drainage boundary framework, accounting for all land and surface areas.

The United States is divided and sub-divided into successively smaller hydrologic units which are classified into four levels: regions, sub-regions, units, and cataloging units. The hydrologic units are arranged or nested within each other, from the largest geographic area (regions) to the smallest geographic area (cataloging units). Each hydrologic unit is identified by a unique hydrologic unit code (HUC) consisting of two to eight digits based on the four levels of classification in the hydrologic unit system.

Resources:   https://water.usgs.gov/GIS/huc.html   and https://www.nrcs.usda.gov/wps/portal/nrcs/detail/?cid=nrcs143_021616

Watershed:  These are areas of land in which water collects and, ultimately, drains into a waterway. The edges or boundaries of a watershed are the high points or mountains.

Resource: USGS School of Water explanation for Watersheds and Drainage Basins