Spacious Accommodations Martha Lake Retreat in Mercer offers a spacious holiday home with four bedrooms and three bathrooms. The property features a private entrance and a fully equipped kitchen with modern appliances. Modern Amenities Guests enjoy sea and lake views, air-conditioning, a balcony, and a washing machine. The home includes a games room, tour desk, and free WiFi in public areas. On-site private parking is available. Local Attractions Nearby attractions include Moondeer & Friends Gallery (24 mi), Ironwood Carnegie Library (26 mi), Wilder Fine Arts (27 mi), Mt Zion and Stormy Kromer (28 mi each), and Plummer Mine Headframe (30 mi). Gogebic-Iron County Airport is 33 mi away.