NorthWest Arkansas Cachers

Leaving West Central Arkansas the last week of June, for Colorado, pulling a small fiberglass travel trailer. The plan is to spend the first night in Ouray, then scout for a boondocking campsite to use as a forward operating base while driving jeep trails and geocaching. Moving the camp after a few days, possibly to Silverton or Animas Forks, to access other jeep trails and geocaches. The travel trailer has a high lift axle and 15" tires with four shocks, so it will access somewhat rougher terrain to get to a campsite. Jeep and trailer pix at:http://www.mountainborn.com
Never been there, don't have a clue, but we suspect that being flatlanders, we may need to spend the nights at around six or seven thousand feet in order to rest better, making day trips over those cool passes, ect..
Advice, suggestions and camping information much appreciated.