Labor Day weekend, Aug. 30-Sept. 1, will mark the final holiday weekend North Dakota's state historic sites are open to the public before closing for the season.

The sites are open through Sept. 15 - Fort Abercrombie near Fargo and Wahpeton, Fort Buford near Williston, Fort Totten near Devils Lake, the Gingras Trading Post near Walhalla, the Whitestone Hill Battlefield near Kulm, Fort Clark Trading Post near Washburn, the Chateau de Mores in Medora, and Camp Hancock and the Former Governors' Mansion, both in Bismarck.

The Pembina State Museum in northeastern North Dakota, a regional museum of the State Historical Society of North Dakota, is open year-round, as is the society's headquarters, the North Dakota Heritage Center in Bismarck.

Also open year-round is the Missouri-Yellowstone Confluence Interpretive Center one-half mile east of Fort Buford and the new Chateau de Mores Interpretive Center.

For more information, contact the State Historical Society at 328-1476 or visit the society's Web site at www.nd.gov/hist.