I photographed this scene this evening here in the U.P. of Michigan. One week of summer-like temps. last week and now winter is back for this week – a typical spring in Michigan! Marquette County, Michigan - Upper Peninsula 4/21/15
Here’s all the rocks I collected. Technically they are considered iron Slag. Leland Blue and Frankfort Green. My biggest pieces weigh about 4 pounds each and all together this is about 15 pounds of rocks.