620.425.  Historic legacy trails recognized — department to ensure signage along each trail. — 1.  The following trails are hereby recognized as "Historic Legacy Trails of Missouri":

  (1)  Lewis and Clark trail;

  (2)  Mark Twain legacy trail;

  (3)  Route 66 legacy trail;

  (4)  U.S. Grant trail;

  (5)  Pony express trail;

  (6)  Oregon legacy trail;

  (7)  Heritage alliance;

  (8)  Way of American genius legacy trail;

  (9)  African civil rights legacy trail;

  (10)  Katy legacy trail;

  (11)  Harry Truman heritage legacy trail;

  (12)  Rock Island legacy trail;

  (13)  Trail of Tears;

  (14)  Boone's Lick trail;

  (15)  Santa Fe trail;

  (16)  Mina Sauk trail;

  (17)  Taum Sauk highpoint trail;

  (18)  Ozark trail;

  (19)  Caudill trail;

  (20)  Butterfield overland national historic trail;

  (21)  Honey War trail;

  (22)  California national historic trail;

  (23)  Osage legacy trail;

  (24)  Mississippi greenway;

  (25)  Mississippi river trail;

  (26)  Mississippi river water trail;

  (27)  American discovery trails;

  (28)  U.S. bike route 66; and

  (29)  Potawatomi trail of death.

  2.  Subject to appropriation, the department of economic development shall determine whether signage already exists identifying the trails and, where the department determines there is no signage already in place, the department may coordinate with the National Park Service, the department of natural resources, the department of transportation, local government entities, or local historical societies or similar nonprofit organizations to fund the placement of at least two signs along each trail, one of which shall be at the beginning, denoting the trail's status as a historic legacy trail.  For a trail not wholly contained within the state, the department of economic development shall have the discretion to determine where to fund the placement of signs.