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A strip of land planted with fire-resistant vegetation to retard the spread of wildfires.
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It also offers shelter and tasty seeds for upland songbirds and game birds such as sage grouse; helps control erosion; serves as a greenstrip or firebreak in fire-prone ecosystems; and seems to thrive on poor-quality sites that have been damaged by overgrazing, wildfire, or off-road vehicles.
For example, a greenstrip south of Grasmere, Idaho, helped stop a wildfire in 1988.
In Idaho, most greenstrips are about 300 feet wide and have been seeded along highways and railways.