Mountain Fork Watershed - 11140108

Home to approximately 7,000 Arkansans (2000 Census), the Mountain Fork watershed lies within the Red River Basin in Western Arkansas crossing into Oklahoma.  The hydrologic unit code for this watershed is 11140108.  There is no upstream watershed.  The Lower Little (11140109) is downstream.

State-Level Map - Mountain Fork Watershed-Level Map - Mountain Fork Watershed Land Use Map - Mountain Fork
County Pages
(Contact Information)
Major Streams 2006 Land Use
(241 Square Miles)
  • Mill Creek
  • Mountain Fork River
  • Powell Creek
  • Sixmile Creek
  • Twomile Creek
  • Forest: 63.1%
  • Transitional: 18.6%
  • Grassland: 16.8%
  • Suburban: 1.3%
  • Water: 0.2%

Data Source: CAST

Mountain Fork 303d Impaired Streams (what is an impaired stream?)


More Watershed-Related Information


  • Clean Water Act Section 303(d) Impaired Waters Data Update here
  • Arkansas’s Final/ Draft Impaired Waterbodies – 303(d) List by Year here
  • AR Water Newsletter, Summer, 2015 here
  • NPS Management Plan here
  • The projects presented at the 2015 annual NPS conference are located here

Interactive Map

Interactive Watershed Viewer
Explore your county or watershed with this flash-based interactive map.  View over 25 geographic and water-related layers. Open Interactive Watershed Viewer.