Hiking or parking in any national forest in the Pacific Northwest is free tomorrow for National Trails Day and June 11 for National Get Outdoors Day.

The $5 day fee per vehicle for parking in specified areas of the Okanogan-Wenatchee National Forest is waived. Many improved trail heads on the national forest require the day pass, or a yearly recreation pass such as the Northwest Forest Pass.

Funds from the recreation passes help maintain facilities and services at trail heads or other recreation sites.

Last year the fees generated about $9 million in the Pacific Northwest, which was used to fund trail maintenance projects or help fund larger recreation improvements, a news release from the U.S. Forest Service said.