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Wisconsin Range
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===Polygon Spur=== {{coord|86|00|S|126|00|W}}. A broad, ice-free spur lying {{convert|2|nmi}} southeast of Tillite Spur at the south end of the Wisconsin Plateau. The name was proposed by John H. Mercer, USARP geologist to these mountains, 1964-65, because the surface of the spur is covered by a network of unsorted polygons.{{sfn|Alberts|1995|p=583}}
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