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Protect soils from scour and washout in erosive environments such as culvert outflows, swales and drainage ditches with Presto’s GEORUNNER® scour protection mats. The mats provide resistance to shear stresses, and protect more efficiently than typical vegetation or rip rap systems. Stabilized with a strong anchor system, GEORUNNER mats resist high-flow lifting forces even in saturated soils and its open design allows dense and stabilizing vegetation growth.