Sunday, Oct. 11, 1:30-3:30 p.m., Treleven Fields and Farm. The New Haven Conservation Commission and UVM’s PLACE Program invite the public for a hike of Treleven’s trails, including a moderately steep climb to a rocky outcrop overlooking the farm and the Champlain Valley. Hiking shoes and water recommended. Rain or shine; dress for the weather. Directions: treleven.wordpress.com. Info: estuhl@uvm.edu or 607-342-1708.