Sand mining boom threatens rare Karner blue butterly - Winona Daily News

4 February 2012, 10:19 pm

Ashland CurrentSand mining boom threatens rare Karner blue butterlyWinona Daily NewsThis quarter-size, gossamer-blue butterfly lives much of its life on wild lupine, whose blue-purple flowers are a common sight in Wisconsin's sand barrens. Air: Mines and processing plants need air permits. Silica exposure is a public health concern, ...Mining, Frac Sand, And A Rare ButterflyAshland CurrentFrac sand miners skip butterfly checksWisconsin Rapids Tribuneall 7 news articles »... Read More »

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