People across the Tristate will celebrate the 31st anniversary of Earth Day.

        The biggest bash takes place Saturday at Sawyer Point, where a coalition of environmental groups, government agencies and businesses presents Cincinnati's Earth Day Celebration.

        “Clean it up ... Green it up,” which runs from 1 p.m. until dark, has children's activities, rock wall climbing, storytelling and farm animals. Live bands, including the Cowboy Junkies, will perform.

        Boy Scouts and Girl Scouts will present a fashion show of clothing they have created from recycled materials.

        Earth-friendly food will be sold by Ulysses Natural Foods, Wild Oats and Jungle Jim's Market.

        Attendees can take home a young tree to plant, courtesy of the Northern Kentucky Division of Forestry.

        Information: 569-7966 or 648-4026.

        A sampling of other Earth Day-related events:

        • The William Howard Taft National Historic Site will hold a free Earth Day program, “Kids Conservation and Resource Education” for children 8-12. The one-hour program includes exploration of conservation issues, scavenger hunts and other games, and recycling activities. Reservations required for groups.

        Programs begin at 1 and 2 p.m. Saturday and Sunday at the site, 2038 Auburn Ave., Mount Auburn. Information: 684-3262.

        • Caesar Creek State Park near Waynesville is holding its annual “Green Up Day” Saturday. Volunteers are needed to work on 20 cleanup projects around the Caesar Creek Lake. Hours: 9 a.m.-2 p.m. Call to register: 897-1050.

        • Caesar Creek's March for Parks takes place Saturday. Proceeds benefit park projects. To register, call (937) 439-1415.

        • The Great American Cleanup on Saturday, sponsored by Cincinnati Parks, is coordinated locally by Keep Cincinnati Beautiful. Between 8 a.m. and 1 p.m. volunteers will plant flowers, trees and bushes at interstate and highway sites. Information: 352-4382.

        • Annual Herps Hike at the Gilmore Ponds Interpretive Preserve in Hamilton. Naturalist Wayne Wauligman will lead the expedition to search for frogs, snakes, toads, salamanders and other friendly waterside reptiles. The hike starts 9 a.m. Saturday at 3400 Symmes Road. Information: 867-5835 or (877) PARKFUN.

        • Explore the natural and human history of French Park in Amberley Village.“Woodland Wander” is 1-3 Saturday. Meet at the French House. 751-3679.

        • Meet mayapple and bloodroot, in “The Wacky, Wild and Wonderful World of Wildflowers.” The nature walk is 1-2:30 p.m. Sunday at Caldwell Nature Preserve in Carthage. Meet in the parking lot. Reservations requested. Information: 761-4313.

        • More wildflowers are waiting to be appreciated at Rentschler Forest Preserve in Fairfield Township. Meet at 2 p.m. at the Cummins Shelter, 5701 Reigart Road. Information: 867-5835.

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