Or maybe it’s quartz and feldspar.When we visited North Cascades National Park for the first time two years ago, it was this sight of Diablo and Ross Lakes that captured our hearts and drew us back again. The incredible blue and turquoise colors of these lakes comes from mineral particles ground to a fine “rock flour” by the glaciers that also feed the lakes with their meltwater. A park ranger told us it was mica that reflected and refracted the light to create the color, a write up for a Geocaching Earth Cache suggested other minerals. In any case today we had the opportunity to linger and marvel at the scene. We identified the mountain in the distance as Davis Peak, named for Lucinda Davis and her family who settled here in 1890.
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