T-153 is located in the modern community of Nachoca. The site is a large continuous sherd scatter in fallow fields and low density grasslands, below the modern road between Taraco and Santa Rosa and just to the west of a quebrada. The only occupation at the site the the EP one, which covers the entire area of 3.6 ha. With a population index value of 192, T-153A is the largest EP site on the Taraco Peninsula. No prehistoric architectural features of any kind were recorded.