Crystal Lake Mining Corporation, formerly Sierra Iron Ore Corporation, is engaged in the identification, acquisition and exploration of prospective mineral properties in Canada. The Company's mineral properties include Iron Property, EL 5 Property, EL1 Property and Tom Cat Claims. It holds interest in the iron mineralization on the Emerald Lake property located north of the town of Emo, Ontario. It also holds interests in EL 5 Property located in Emo, Ontario. The EL 5 Property consists of an approximately kilometer long segment of a linear tabular body existing along a strike length of approximately 31 kilometers. It holds interest in EL1 Property, which is located at Emo, Ontario. It owns interest in the Tom Cat claims, located in the Nicloa Mining District, British Columbia. The Tom Cat property is located approximately 200 kilometers east-northeast of Vancouver. The Tom Cat property consists of over 10 contiguous mineral claims covering an area of approximately 4,010 hectares.