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Custer State Park
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Sylvan Lake
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Sylvan Lake Bouldering
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Acid Test Boulder
Acid Test Boulder
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1 climb · Custer, SD
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Acid Test
★
3.0
(6)
5.11c/d
Trad/TR · FA: TR Mike Todd & Mark Smedley 1978 First Ascent: On-sight free solo Charlie Fowler 1983