I-liking trails are built with switch-backs, side hilling, steps and water bars; erosion repair and stream bridging may also be needed. ... Recommendations and demonstrations on the purchase, use and maintenance of a chainsaw and associated safety gear. ... CORNISH TRAIL (Trail Conference East I . , a#39;Qa#39; a#39; a#39; Hudson Trails map #2, Grid A/B-4) The new Cornish Trail links Route 9D to the Brook Trail.