New Frontier (also known as Frontier Horizon) is a 1939 American Western film starring John Wayne, Ray "Crash" Corrigan, Raymond Hatton, and Jennifer Jones.
This was the last of eight Three Mesquiteers Western B-movies with Wayne (there were 51 altogether).
The leading lady is Jennifer Jones, billed as Phylis Isley, in her film debut.
The director was George Sherman.