The Mountain Transition Zone (MTZ) as designated on the Mariposa County Land Use Map, is applied to lands with limited development potential.

1. Development standards for MTZ. Development standards for the MTZ shall be as follows:
   1. Uses:
      1. Permitted uses: Residential, and those applicable uses listed under Chapter 17.108.
      2. Administrative use permit uses: Small scale mining in compliance with applicable standards and regulations pursuant to section 17.108.110.
      3. Conditional uses: Churches, subject to parking standards as required in section 17.108.120(F) of this title; private schools, except as permitted by section 17.108.060(I); and mining, which may include mineral or construction material processing, in conformance with the State Surface Mining and Reclamation Act and county code.
      4. Prohibited uses: All uses listed in section 17.108.200 of this title and other uses not listed above are prohibited, except similar uses in compliance with section 17.108.120 and 17.108.030 of this title.
   2. Minimum parcel or lot size: No parcel of real property in the MTZ shall be divided or split into two (2) or more parcels by voluntary transfer, court action, or other conveyance where any one (1) of the parcels so created will be less than twenty (20) acres or one-half of one legal quarter-quarter section in gross area.
   3. Density: One (1) single family residence per twenty (20) acres or one-half of a legal quarter-quarter section.