The Burzahom site is a prehistoric settlement in the village of the same name in the Srinagar District . It is 16 kilometres ( 9.9 mi ) to the northeast of Srinagar on the Naseem - Shalimar road . The elevation of the site is 1,800 metres ( 5,900 ft ) above sea - level . It is the northernmost excavated Neolithic site of India . The site is on an ancient Pleistocene lake bed . The location is in a high terrace which is part of the floodplain of the Jhelum river and has Karewa soil ( clay ) formation . The site has a commanding view of the Dal lake which is about 2 kilometres ( 1.2 mi ) away . In the Kashmiri language ' Burzahom ' means `` birch '' , a tree species ( that generally grows in the elevation range of 3,000 to 4,200 metres ( 9,800 to 13,800 ft ) in the Himalayas ) , which is found in the excavated housing area in the form of roofing material , and thus confirming the existence of the tree even in the pre-historic Neolithic times .

Question: what material was used to build the roofs of houses in burzahom
Answer: birch