National Natural Landmarks
Great Rift System
The Great Rift System represents a tensional fracture in the Earth's crust that may extend to the crust-mantle interface. It also illustrates primary vegetation succession on very young lava flows. The Great Rift System is unique in North America and has few counterparts in the world.
Year designated: 1968
Please remember, National Natural Landmarks (NNLs) are not national parks. NNLs are owned by a variety of public and private entities and allowing visitation is at their discretion. Many NNL sites maintain public websites where additional information may be found.