Lyon County commissioners have selected Commissioner Joe Mortensen as board chairman and have retained Commissioner Ray Fierro as vice chairman for 2013.The following appointments were made to various committees, commissions and boards: Lyon County Planning Commission: Commissioner Vida Keller (primary) and Commissioner Bob Hastings (alternate); Comstock Historic District: Commissioner Ray Fierro; Lyon County Debt Management Commission: Commissioner Joe Mortensen; Dayton Valley Conservation District: Commissioner Ray Fierro; Mason Valley Conservation District: Commissioner Virgil Arellano; Smith Valley Conservation District: Commissioner Virgil Arellano; Nevada Public Agency Insurance Pool: Comptroller Josh Foli; Nevada Association of Counties, Board of Directors: To be decided in February; …