The Mother Lode Mine property was originally owned by the Mother Lode Copper Mines Company of Alaska.  It is located north of the Bonanza Mine and on the opposite side of the ridge.  Both mines are in the same vein system.  Originally it had a tramway to a wagon road in the McCarthy Creek Valley.  Avalanches plagued the mine camp and tramway.  In 1919, Kennecott acquired a controlling interest in the company and the company was renamed the Mother Lode Coalition Mines Company.  Eventually, the tramway was abandoned.  The ore was then hoisted to the surface at the Bonanza Mine through inclined shafts.  The Bonanza tramway carried to ore to the Mill.  Little remains at the mine location except a few adits. 

The Mother Lode Mine property is not part of the National Historic Landmark.   The State of Alaska acquired the property by foreclosure after the mines had shut down.  In 1966 the State sold the property to a private owner.  Today, the property is owned by the Mother Lode Copper Mines Company of Alaska, LLC. The Mother Lode Mine is a private inholding within the Wrangell-St. Elias National Park.