Oregon’s Timberline Lodge tucks on the edge of the alpine at Mt. Hood. The iconic hotel has long been recognized as a National Historic Landmark, but now the Historic Hotels of America has accepted the lodge into its fold. For skiers and snowboarders visiting this spring, Timberline Lodge is offering a third night free.

The Historic Hotels of America just accepted Timberline Lodge into its program for the National Trust for Historic Preservation. The program recognizes distinctive lodges that preserve their architecture, ambiance, and historic integrity. The lodge was built in 1937 by the Works Progress Administration, a federal project under the President Roosevelt’s New Deal.

Timberline Lodge stands as one of the icons of Pacific Northwest ski history, operating for more than 75 years. It is Oregon’s only ski in-ski out lodging, and the Timberline Lodge ski area runs one of the longest seasons in North America, with skiing on the Palmer Snowfield in summer.

This spring, skiers and snowboarders can get a third night free to stay at Timberline Lodge. The offer applies to reservations before May 1, 2013. The third night is available for those who book two nights, and it can be tacked on to the trip as an addition, used on another trip, or given away as a gift. The third night can only be used on Sunday through Thursday nights, and it must be used prior to May 31, 2013.

For reservations, call 800-547-1406. For more information, go here.