Pembroke Savanna Nature Preserve

Pembroke Savanna Nature Preserves, is a high quality dry sand oak savanna – an ecosystem with few trees and an understory of grasses and wildflowers. Formed by massive amounts of glacial meltwaters that scoured the Kankakee Valley during the last Ice Age (known as the Kankakee Torrent) along with sand and gravel deposited and blown to form dunes, the area consists of high plant diversity tolerant of sandy soils – such as the black oak – the savanna’s dominant tree and keystone species.