The Salt Lake Climbers Alliance is holding its annual Adopt-a-Crag Day on Saturday in Little Cottonwood Canyon. The alliance will be working with Wasatch/Cache National Forest and the Access Fund to improve and clean areas, from the park-and-ride lot at the mouth of the canyon all the way to the White Pine slide. The event is being sponsored by The Front Climbing Club and Momentum Climbing. Volunteers are needed, and the work will be organized in two shifts - 8 a.m. to noon and 1 to 5 p.m. Snacks and drinks will be provided. Meet at the park-and-ride lot at the mouth of the canyon for the 8 a.m. shift and at 1 p.m. for the second shift. Visit www.saltlakeclimbers.org for more information and online volunteer sign-up.

Bugs, trout and the Green River

Mark Vinson, director of the Utah State University/Bureau of Land Management BugLab in Logan, will talk about the entomology of the Green River below Flaming Gorge Dam tonight at 7 at the Salt Lake County Fish and Game Meeting House, 1177 W. Bullion (5700 South), Murray.

Vinson will also speak about recent efforts to relocate salmonflies on the Logan River. His speech is part of the Stonefly Society Chapter of Trout Unlimited's monthly meeting.

Cleveland-Lloyd visitor center honored

The Cleveland-Lloyd Dinosaur Quarry Visitor Center Team has been awarded the 2007 Department of Interior Environmental Achievement Award for sustainable design features in its renovation of the Cleveland-Lloyd Dinosaur Quarry Visitor Center. The team expanded the original 950-square-foot building by 1,500 square feet to add exhibit space, a small office and a mechanical room. Off the electrical grid due to its remote location, the center requires electricity 24 hours a day to power the building's systems, so the team installed a photovoltaic system.

Wild and Scenic Rivers

Mark Danenhauer of the Utah Rivers Council will give a presentation on Wild and Scenic Rivers to the Utah Whitewater Club at the Salt Lake REI store, 3285 E. 3300 South, East Millcreek, tonight at 7. The talk is open to the public.

Birding events

The Great Salt Lake Audubon will be leading a lakefront birding excursion Sunday from 8 a.m. to 3 p.m. at Antelope Island Causeway and Willard Bay. The group will be on the lookout for species such as red phalarope, Bonaparte's and Sabine's gulls, surf scoters and perhaps some late-migrating shorebirds. Meet by 8 a.m. in the southeast corner of the ShopKo parking lot in Salt Lake City (near 1300 East exit from I-80). Bring lunch and water or plan to buy at a stop en route. Call Tim Avery at 801-440-3035 if you plan to attend. Contributions toward gas money are appreciated.

Winter pistol league

The Utah Precision Marksmanship Society is organizing a winter Recreational Pistol League at the University of Utah Shooting Range. The format is similar to a bowling league, with handicapped scoring to aid less experienced teams. Clinics will offer basics on safety and marksmanship on Wednesday and Thursday evenings throughout October and early November. For more information, contact Matt DeLong, 801-581-7462 or delong@physics.utah.edu, or Steve Corbin, Corbshoot@aol.com.

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* To get your event listed, e-mail the information to brettp@sltrib.com or by mail to Brett Prettyman, The Salt Lake Tribune, 90 S. 400 West, Suite 700, Salt Lake City, UT 84101.

Tight lines

Brett Prettyman is on assignment; his column will return next week.