Tirril cleared much of the land and established a dairy farm on the site .
William Tirril was the first owner of the land which comprised 200 acres ( 81 ha ) of steep , heavily timbered land on the escarpment of the range .
owner cleared much of the land and established a dairy farm on the site .
William Tirril was the first owner of the land which comprised 200 acres ( 81 ha ) of steep , heavily timbered land on the escarpment of the range .