MONTPELIER, Vt. (AP) — Three Vermont ski areas at least partially located in the Green Mountain National Forest could expand their summer recreational activities by taking part in a new national program designed to promote year-round recreation activities on the federal land. Bromley, Mount Snow and Sugarbush, as well as four alpine resorts and two Nordic resorts in New Hampshire, are eligible to expand their summer activities as part of the new directives associated with the Ski Area Recreational Opportunity Enhancement Act of 2011, said Susan Mathison, the Forest Service's Eastern Region winter sports program manager. It's unclear how the Vermont resorts will take advantage of the new rules because, at Bromley and Mount Snow, many of the activities being encouraged by the Forest Service area already taking place on private land controlled by the resorts.