CONCORD â Craig Rennie has been appointed chief supervisor for the N.H. Bureau of Trails. N.H. Commissioner of Natural and Cultural Resources Sarah Stewart announced that Rennie will take over the position formerly held by Chris Gamache, who retired last fall. The Trails Bureau chief supervisor is responsible for management of the bureauâs 1,000 miles of wheeled off-highway recreational vehicle trails, over 300 miles of state-owned rail-trails, and 7,422 miles of snowmobile trails. The chief supervisor also supports the multiuse trail system in the state for hiking, cycling, equestr...