Serengeti over 80 percent of the Serengeti. The southeastern area lies in the rain shadow of the Ngorongoro Conservation Area's highlands and is composed of shortgrass treeless plains with abundant small dicots. Soils are high in nutrients, overlying a shallow calcareous hardpan due to natrocarbonatite eruptions from Ol Doinyo Lengai. A gradient of soil depth northwestward across the plains results in changes in the herbaceous community and taller grass. About west, acacia woodlands appear suddenly and stretch west to Lake Victoria and north to the Loita Plains, north of the Maasai Mara National Reserve. The sixteen acacia species vary over this
Tobeatic Game Reserve Halifax Formation, and Middle to Late Devonian biotite monzogranite and leucomonzogranite. It's surficial geology is largely a stoney till plain and contains many moraines, eskers, hummocks and drumlins Wildlife in the Tobeatic Game Reserve includes eastern moose and white-tailed deer. A book on "Paddling the Tobeatic" was published by Nimbus Publishers. The Tobeatic/Kejimkujik area is also the setting for "The Tent Dwellers", although at that time, neither the Tobeatic Wilderness Reserve nor Kejimkujik National Park existed. Rivers in the Tobeatic Wilderness Area include: Archaeological research shows that the Mi’kmaq people were present in the Tobeatic at least 4500 years ago.