For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
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. NNL status does not indicate public ownership, and many sites are not open for visitation.
Last Updated: June 28, 2012