SAN ANGELO, Texas (Concho Valley Homepage) — The Concho Valley Archaeology Society is once again partnering with the Fort Concho National Historic Landmark for its annual Archaeology Fair on Sept. 21. Here's what you need to know. The event, also called "Yesteryear's Revisited," is free and will be held from 10 a.m. to 3 p.m. at Fort Concho's Barracks 6 building. Parking will be available on Henry O. Flipper Street, which can be accessed from So…