Old Mill Country Store LLC Share: Farm SuppliesGiftsJewelryClothingAgricultural Products, Feed & Supplies Old Mill Country Store LLC Visit Website Request Info 500 W Third Ave Ellensburg, WA 98926 (509) 925-5397 (509) 925-6117 (fax) Facebook Hours: Monday-Friday 7:30am-6:00pm; Saturday 8am-5pm; Sunday 9am-4pm Map What's Nearby? Distance: 5 10 15 20 25 50 mi.