Nez Perce National Historical Park - hours (U.S. National Park Service)

The Visitor Center at Spalding, Idaho, is open all year.
Summer Hours: From May 22, 2009 to Labor Day, 8:00 am until 5:00 pm.
Fall/Spring Hours: 8:00 am to 4:30 pm
Winter Hours: November 29, 2009 to March 14, 2010, the visitor center will be open from 9:00 am to 4:00 pm.
The visitor center is closed Thanksgiving, Christmas, and New Year's.

The Visitor Center at Big Hole National Battlefield in Wisdom, Montana is open all year.
Summer Hours: From mid-June to early September, the park is open from 8:00 am to 6:00 pm.
Winter Hours: Typically, in mid-November the park transitions to winter hours - 10:00 am to 5:00 pm.
The visitor center is closed Thanksgiving, Christmas, and New Year's.

Bear Paw Battlefield is open year round from dawn to dusk. The Blaine County Museum in Chinook has exhibits and an audiovisual program on the battle at Bear Paw. In the summer the museum is open daily from 8:00 am to 5:00 pm. They are closed for lunch from 12:00 to 1:00 pm. For the remainder of the year, it is open on weekdays from 1:00 pm to 5:00 pm. They are closed for Thanksgiving, Christmas and New Year's.