Over 700 years ago, Old Town was an active 12-acre village and town center, fortified by steep earthworks and encircled by a high palisade wall. A sophisticated and highly structured society of indigenous people occupied the civic and ceremonial village center from 1050 to between 1350 and 1450 AD. Today, two large original pyramidal, earthen temple mounds and two smaller circular burial mounds lie undisturbed adjacent to the Thomas Brown House.