San Angelo is a city on the Concho River in Texas. It’s known for its 1860s U.S. army post, the Fort Concho National Historic Landmark. Its restored buildings display original artifacts and weapons. The Concho River Walk is a long, green corridor with walking trails, gardens and parks, such as The Bosque and Kids’ Kingdom. Downtown, Concho Avenue is lined with restored 19th- and 20th-century period buildings.