More than 100 national parks that usually charge entrance fees will be offering free admission the weekend of Aug. 14-15.
Also, many national park concessionaires have special offers for the weekend with discounts and coupons for rooms, tours and products.
Two more days with free entrance are scheduled for the fall on Sept. 25 and Nov. 11.
Parks participating in the free Aug. 14-15 weekend include Grand Canyon in Arizona, Yosemite in California, Rocky Mountain in Colorado, Volcanoes in Hawaii, Acadia in Maine, Glacier in Montana, Badlands in South Dakota, Arches, Bryce and Zion in Utah, Shenandoah in Virginia, Mount Rainier and Olympic in Washington, and Yellowstone, with entrances in Idaho, Montana and Wyoming.
Get out and see out National Parks.