Mark has been a part-time trails program coordinator for Pima County Natural Resources, Parks & Recreation (NRPR) since 2006. During that period he took the lead in numerous trail projects, including designing the Sweetwater and Robles Trails Parks, reroutes/new trails in Tucson Mountain Park, The McKenzie Ranch Mountain Bike Competitive Course, the Hohokam Trail (mostly conceptual).
Neil moved from the Town of Marana to Pima County, becoming a full-time trails program coordinator in October 2017. Since joining Pima County, Neil has played instrumental roles in all trail design and construction efforts.
For machine building projects, Mark operates the NRPR SWECO 480 trail dozer, and Neil operates a mini excavator. The move to mechanized trail construction in 2017 has greatly increased trail construction productivity, from five miles a year using volunteers to 15-20 miles.