Resources Download Trail Resources by clicking on the links below: Guidelines for the Planning, Design and Maintenance of Recreational Trails in South Australia – Revised 2016 Trail Design Guidelines Trail Difficulty Rating System Mountain Bike Rating System Horse Rating System Trail Check Action Planner – A checklist for community volunteers prior to developing local shared use trails Trail Check Action Planner South Australia Recreational Trails 10 Year Master Plan Trails Master Plan Master Plan Summary Master Plan Summary