The Outdoor Calendar is a directory of upcoming outdoor events. Have your group's next event listed here for free. Send it via e-mail to wes.smalling@trib.com, fax 266-0568 or mail to: Casper Star-Tribune, Outdoor Calendar, P.O. Box 80, Casper WY 82602.

Groups

Today

* Audubon Society of the Bighorn Basin presentation on the geology of northwestern Wyoming, Bighorn Federal Savings and Loan meeting room, 7 p.m.

Today-Friday

* Two Fly Fishing Tournament charity fundraiser, North Platte River. Logon to www.twoflyfoundation.com.

Saturday

* Free Kid's Fishing Derby, Harry Yesness Pond in Casper. From 8-11 a.m. for families with last names A-M and noon-3 p.m. for families with last names N-Z.

May 17

* Cheyenne Audubon Society's Big Day Bird Count. Call 634-0463.

May 17-18

* Powder Rim Bird Watching Tour, Adobe Town Tour, Biodiversity Conservation Alliance. Call (307) 742-7978.

* Shoot on the Green archery tournament, Scotts Bottom Nature Area in Green River. Call (307) 875-1950.

* Wyoming Walleye Circuit fishing tournament at Keyhole Reservoir. Register at www.wyomingwalleye.com.

May 24-25

* Big Horn Bowhunters Sean Kostelecky Scholarship 3-D Shoot, Hot Springs State Park in Thermopolis. Call (307) 864-2585.

May 24-26

* Southern Red Desert Caravan driving tour, Biodiversity Conservation Alliance. Call (307) 742-7978.

May 30-June 1

* Casper Audubon Society's Annual Summer Birding Campout. Call 266-3160.

May 31-June 1

* Wind River Archers Motion-Target 3-D Shoot, Pinedale. Call (307) 231-2197.

National Park Service

Today

* Bighorn Canyon National Recreation Area, book signing and lecture about the small town of Garland, 7 p.m. at the Bighorn Canyon Visitor Center

Sunday

* Devils Tower, publication party for "Standing Witness: Devils Tower National Monument, A History" and book signing with author Jeanne Rogers, 2-4 p.m. at the Devils Tower Visitor Center

June 1

* Devils Tower, voluntary climbing closure during the month of June begins out of respect for American Indian cultural traditions

Wyoming Game and Fish

Today

* Results available for moose, bighorn sheep and mountain goat drawings

Friday

* State Game and Fish Commission executive session meeting, 7 a.m. in Casper

Saturday

* Bowhunter education class, Cody. Call (307) 272-2740.

May 15

* Landowner license applications due.

May 17

* Free watercraft safety inspections at the Cody Laboratories Inc. parking lot in Cody

May 20

* Spring turkey season ends.

May 31

* Registration deadline for free Summer Youth Camp