The pilot of a single-engine plane was injured and a  horse corral was damaged today when the aircraft went down about four miles  west of Perris.
      The crash happened about 1 p.m. in the 24000 block of Rose Quartz Drive,  a rural area between Perris and Lake Mathews, according to the Riverside  County Fire Department.
      A man at the controls of an experimental plane apparently was forced to  land near a residence, where he plowed through a corral and fence, a fire  department official said.
      No one on the ground was hurt, but the pilot suffered unspecified minor  injuries and was taken to a hospital for treatment.
      The aircraft sustained significant damage, according to the fire  department.
      The cause of the crash was under investigation.