Klickitat County Commissioners will be mulling over whether to allow recreational all-terrain vehicles to be legally used on County roads with speed limits under 35 miles per hour after a pair of hearings last week.  Opinions voiced at the two hearings are mixed, with those at a session in Goldendale leaning in favor but people at a White Salmon meeting raising concerns with safety, dust, and trespassing.  Commissioner David Sauter says written comment will be taken until October 7.  Sauter noted the range of options for the Commission includes allowing the ATV use on all eligible roads, doing it just on certain roads, not allowing it at all, and setting up a pilot area to test it.