Wednesday, September 14 4:00 pm ET Sealed Bid Deadline
240 D Ave
Gwinn, Michigan 49841


Thursday, July 28 • 9 am to 3 pm
Thursday, August 4 • 9 am to 3 pm

Check-in at the Airport Operations Building, 125 Ave G, Gwinn, to meet with auction company staff and review documentation on the properties.

Other Times by Appointment



Property 1: Building 708, FORMER BASE COMMAND CENTER, SAGE Bldg.
130,000 Sq. Ft., 6± acres
Tax Parcel ID: 52-05-266-002-01
Zoned: Industrial 2

Property 1 is the former K. I. Sawyer Air Force Base Command Center and SAGE (Semi-Automatic Ground Environment) Data Center (DC-14) Building. The 6 acre site has two buildings: the main 3 story building which totals 120,000 Sq. Ft. and a smaller single story support building totaling 10,000 Sq. Ft. which could be used for storage or back-up generators/battery power cells.

Originally constructed by the US Air Force in 1958 and going online in 1959, the SAGE system was a network linking Air Force and later FAA General Surveillance Radar Stations into a centralized center for Air Defense. SAGE directed and controlled the NORAD response to potential Soviet Air Attacks. The IBM AN/FSQ-7 computers that compiled the data from the site each took up 22,000 Sq. Ft. and occupied an entire floor of the facility.

The building boasts a 15" reinforced poured concrete structure, including the roof. It was built to withstand pressure from thermonuclear warheads detonating and hardening to reduce the effects of electromagnetic pulses (EMP). This makes it a perfect candidate for use as a data center and the existing freight elevator provides easy moving of equipment from one level to another.
AT&T occupies a small portion of the property and has a Point-of-Presence (POP). The FAA previously operated radar for homeland defense at this building.

The building is located just 15 minutes SE from Marquette, the largest city in the Upper Peninsula of Michigan. Closed for military use since 1995 it is the perfect opportunity for a buyer wanting to upgrade to a mission critical Tier 3 Data Center, bitcoin mining operation, a doomsday bunker or just own the most unique building in the UP in which to base their business.

Buyers should definitely keep this property on their radar.

Additional information is available with the return of this completed release.

Other Properties offered in this Sale:
Primary Auction Listing

Property 2: Parcel E-24, 77.99± Acres Bare Land, located on M-553, west of runway
77.99± acres
Property 3: Building 850, Former Hospital
119,588 Sq. Ft., 19.37± acres
Property 4: Buildings 830, 831, 832, 833, 835, 836, 837, Lower Dormitories
139,611 Sq. Ft., 23.1± acres
Property 5: Parcel E-22, 221.84± Acres Bare Land
221.84± acres
Property 6: Tailwinds Bar/Restaurant, Former Red Fox Inn, Dormitories, Residences
20± acres
Property 7: Buildings 810/811, South Upper Dormitory Buildings
23,178 Sq. Ft., 4.1± acres
Property 8: Buildings 814/815, North Upper Dormitory Buildings
25,084 Sq. Ft., 4.7± acres
Property 9: Parcel B14-M, 73.72± Acres Bare Land
73.72± acres
Property 10: Building 812, Former Admin. Bldg.
9,562 Sq. Ft., 1.16± acres
Property 11: Parcel B1-D, 10.82± Acres Bare Land, located east of Lower Dorms Parking Lots
10.82± acres
Property 12: Building 813, Old Post Office
10,641 Sq. Ft., 2.4± acres
Property 13: Building 819, Old Movie Theater
5,810 Sq. Ft., 1.6± acres
Property 14: Parcel C-52, 6.38± Acres Bare Land, NE of Sidewinder/Fortress St. Intersection (behind homes)
6.38± acres

View Drone Video of the site:


Broker Participation

Broker Participation is welcome but not required. A 2% commission will be paid to the licensed broker who, at time of registration, registers the bidder who pays for and settles for the real estate. To qualify a broker must attend one inspection with his/her client, assist as needed in the closing process and attend closing. A broker buying on his/her behalf, or on the behalf of any business entity in which he/she holds an interest on behalf of a family member or a family member’s business entity, is not entitled to a commission.

Payment Information

10% Buyer’s Premium. Sealed Bid Offers must be received Wednesday, August 10 at 4 pm ET, accompanied by a $25,000 earnest money deposit (cashier's check or wire) and a completed Sealed Bid Form. Bids must be sent via a traceable courier to Maas Companies Inc at 6923 10 Ave SW, Rochester, MN 55902. Sealed Bids are binding and non-revocable. Suggested Minimum Bid for this Property is $1,000,000.
An additional (earnest money) deposit is due within 2 business days bringing the total monies in escrow to 20% of the purchase price. Balance due at closing within 30 days. Deposit monies are earnest monies and non-refundable. Deposits of non-winning bidders will be returned immediately following the auction. Attorney Thomas Clark will oversee the closing.

Full Terms

Selling Subject to Owner Confirmation and Subject to Prior Sale. Selling AS-IS, WHERE IS WITH NO WARRANTIES OR GUARANTIES EXPRESSED OR IMPLIED. See Bidder Kit for complete terms.

All bids are subject to Seller’s acceptance on or before Thursday, August 11 at 4:00 pm ET. Bidders will be notified of the Sellers decision in writing via email and/or by phone.

In all transactions, Auctioneer is acting as an Agent for the Seller. Buyers are urged to inspect the property prior to purchase. Seller and Auctioneer are not responsible for items. All information received from reliable sources believed to be correct but not guaranteed by the Auction Company. Any announcement made/posted/published during the auction process takes precedence over any material published about this event. In the event of a dispute, Auctioneer has final decision.