Arizona environmental planning firm Logan Simpson prepared a trails master plan for the 392-acre Boyce Thompson Arboretum (BTA) state park and research institution. The plan features six miles of trails that link major exhibits such as the Cactus Garden, palm and eucalyptus groves, and the Landscape Demonstration Garden. Additional trails allow visitors to explore places like the colorful and interactive Children’s Garden. Natural Sonoran Desert habitat can be experienced from the High Trail. The master plan lays out future trails to provide visitors access to the Picket Post House, Colonel Boyce Thompson’s mansion, as well as rugged canyons and lush riparian areas along the creek.
A significant element of the trails master plan is the new Wallace Desert Gardens Exhibit, which will contain more than 6,000 cacti and other desert plants recently acquired from Henry B. Wallace’s private collection. Logan Simpson's landscape architecture design staff developed the conceptual plan for the 13-acre Wallace Exhibit, set among the dramatic rock formations of an undeveloped area in the southwest portion of the Arboretum.