Traostalos was first excavated in 1963-1964 under Kostis Davaras. Davaras returned in 1978 to continue that work. A rescue excavation from April to October 1995 was led by Stella Chryssoulaki.
Along with the usual clay human and animal figurines common to peak sanctuaries, Traostalos has, notably, a female figure with a swollen leg. Other finds at Traostalos include ceramic boats and stone altars. See references for a more complete inventory.