Miner’s Castle Miner’s Castle, a rocky outcropping, at Pictured Rocks National Lakeshore, near Munising Michigan. Post author By Davin Granroth Post date July 31, 2016 No Comments on Miner’s Castle By Davin Granroth Davin is Chief Operating Officer for Covenant Eyes, Inc. in Owosso, MI, USA, where he gets to mix his background in user experience design, research, and strategy with the operation of a software company. For more, see his LinkedIn profile. View Archive → Leave a ReplyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ