They sit at the base of Sachem's Woods, which were the original site of Hill House, now the site of Kline Biology Tower, Sage Hall (the former Forestry School, since renamed Forestry and Environmental Sciences), the chemistry and physics buildings.
They sit at the base of Sachem's Woods: the original site of "Highwood", the mansion of James Abraham Hillhouse. This area is now known as Science Hill and is the site of Kline Biology Tower, Sage Hall (Yale School of Forestry and Environmental Studies), the chemistry and physics buildings.