More than a dozen bidders joined the auction for Boon Island Light Station, driving the price up to $78,000 before closing last week.

The General Services Administration, which manages government buildings and leases and sells commercial property, auctioned Boon Island Light Station, off the coast from York per the National Historic Lighthouse Act of 2000.

Boon Island Light Station, located on an islet six miles off the coast from Cape Neddick, was built in 1855. According to the GSA, the 133-foot tall tower has two rows of seven windows and is constructed of ashlar granite.

On Aug. 11, there were six active bidders on Boon Island with a high bid of $18,000. A total of 13 active bidders drove the high bid up by $60,000 in six days, rising the bid from $18,000 to a high bid of $78,000 by the close of bidding on Aug. 17.

According to Patrick Sclafani, the GSA regional public affairs officer for New England, the high bidder has been approved and the government is conducting the final closing. The name of the winner will not be announced until final closing occurs, said Sclafani, which is expected to happen within the next two weeks.

On Aug. 21, approximately 12 potential bidders were offered a tour of Halfway Rock Light Station, off the coast of Harpswell, which was also put up for auction. Halfway Rock has drawn four bids, with a high bid of $58,000.

Halfway Rock, built in 1871, has a 78-foot tall granite tower, and has an iron domeshaped roof, according to the GSA. The expected close for bidding on Halfway Rock, which is located halfway between Cape Elizabeth and Cape Small, is Tuesday morning.