National Wildlife Refuge System

SONNY BONO SALTON SEA
NATIONAL WILDLIFE REFUGE

906 W Sinclair Rd
Calipatria, CA, 92233
Phone: 760-348-5278
E-mail: Christian_Schoneman@fws.gov

HARDENBERGER TRAIL

Trail Information

  • Length: 0.77 Miles
  • Grade: Gentle
    • GENTLE SLOPE: average slope 0% to 5%
    • MODERATE SLOPE: average slope 5% to 8%
    • STEEP SLOPE: slope of 8% or more
  • Cross Slope: 0.8
    • Cross slope is the grade that is perpendicular to the direction of the trail. Cross slope information is most useful to wheelchair users. Wheelchairs are very difficult to drive or maneuver on steep cross slopes. A cross slope of less than 3% provides maximum accessibility.
  • Surface: Admin Road

Special Features

  • Perfect place to introduce someone to nature

ROCK HILL TRAIL

Trail Information

  • Length: 0.92 Miles
  • Grade: Gentle
    • GENTLE SLOPE: average slope 0% to 5%
    • MODERATE SLOPE: average slope 5% to 8%
    • STEEP SLOPE: slope of 8% or more
  • Cross Slope: 2.7
    • Cross slope is the grade that is perpendicular to the direction of the trail. Cross slope information is most useful to wheelchair users. Wheelchairs are very difficult to drive or maneuver on steep cross slopes. A cross slope of less than 3% provides maximum accessibility.
  • Surface: Native

Special Features

  • "Wild thing, I think I love you"

Sonny Bono Salton Sea
National Wildlife Refuge

Trails By Length

Last updated: October 28, 2010