Millstone Agency, Representing American National Share: Insurance Millstone Agency, Representing American National Visit Website Request Info 112 Walker Creek Rd. Middlebrook, VA 24459 (540) 406-6180 LinkedIn Facebook Hours: Mon 8:30AM–5PM Tues 8:30AM–5PM Wed 8:30AM–5PM Thurs 8:30AM–5PM Fri 8:30AM–5PM Sat-Sun Closed About Map About Leading the industry in providing premier financial products, the Millstone Agency strives each day to act with integrity, knowledge, and positive energy to provide a security blanket for all clients What's Nearby? Distance: 5 10 15 20 25 50 mi.