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OH 3. Cedar Swamp. Acreage: 400. 



Location: Champaign County; Urbana West Quadrangle; 4 miles SW of Urbana; 

 reached via U.S. 68 to Woodburn Road. 



Description: A Registered Natural Landmark. This excellent boreal marl swamp 

 contains a magnificent stand of northern white cedar where it reaches the most 

 southwestern limit of its range. These old-age cedars have undoubtedly 

 dominated the swamp ever since water table conditions stabilized at their 

 present level. The present shallow table of alkaline waters is sustained by the up- 

 welling of ground water from a saturated substructure of calcareous dolomite. 

 The variety of earth materials at the surface provides the range of soil condi- 

 tions required to support the diversified flora. Among the species present are 

 dwarf birch occurring disjunct to its range and showy ladyslipper orchids, a spe- 

 cies now virtually extinct in Ohio. 



Ownership: State; administered by the State Archaeological and Historical 

 Society as a state memorial. 



Data source: NPS. 



