Climbers going up Mount Rainier’s Muir Snowfield. (Photo courtesy Brian Zylstra)

If you go to one of Washington’s three national parks tomorrow through Sunday, you’re in for a treat – the National Parks Service is offering free admission in honor of the Park Service’s centennial Thursday!

If you’re looking for things to do at Mount Rainier, North Cascades or Olympic National Park to celebrate the big anniversary, check out this story by News Tribune outdoor writer Craig Hill.

Hurricane Ridge, Olympic National Park (Photo courtesy Washington State Archives)

And check out this blog post about Mount Rainier National Park’s history.