Christmas Tree Recycling and free mulch  is offered in many area’s of Douglas County Colorado Castle Rock offers tree recycling from December 26 – January 31, in the parking lots of: Centennial Park (22 N. Gilbert St.) Founders Park (4671 Enderud Blvd.) Metzler Ranch Park (4175 Trail Boss Drive) MAP Paintbrush Park (3492 Meadows Blvd.) [...]