Aspen Daily News, 07 Sep 2010 – Beginning last week, Colorado law mandated that medical marijuana dispensaries grow — or have a plan to grow — 70 percent of their own product, and Pitkin County officials are now evaluating how they ought to regulate the rural pot farms linked with local shops. Five marijuana farms are zoned for agricultural use in Pitkin County, according to county community development director Lance Clarke. Growers statewide were required to report themselves to local jurisdictions by July 1, when state regulations went into effect, along with a moratorium on new pot operations.