This weekend, August 15 - 16 is the final of three entry-fee-free weekends offered by the government in all national parks and monuments this summer. Though entrance fees will be waived, other fees such as campground fees remain in place. Hit the road and enjoy. Here is a sampling of a some parks and monuments to consider:

Chiricahua National Monument

nps.gov

Grand Canyon National Park

Montezuma Castle National Monument

nps.gov

Saguaro National Park

Sunset Crater National Monument

nps.gov

Walnut Canyon National Monument

Wupatki National Monument

Canyonlands National Park

nps.gov

Hovenweep National Monument

Natural Bridges National Monument

nps.gov

Zion National Park

Sequoia & Kings Canyon National Parks

nps.gov