VMS Help FORTRAN, Statements, END  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Marks the end of a program unit.  The END statement must be present
  as the last statement of every program unit.  In a main program,
  execution terminates if control reaches the END statement.  In a
  subprogram, a RETURN statement is implicitly executed.  Statement
  format:

     END