Tucson Weekly: Listings: Outdoors (April 16

OUTDOORS
EARTH DAY CELEBRATION. Friends of the Santa Cruz River present a walk, talk and tour of the Meadow Hills Wetland in celebration of Earth Day on Saturday, April 18. Participants meet at St. Andrew's Episcopal Church, 545 S. Fifth Ave. Events include a bird walk at 8 a.m., a talk with hydrologist Philip Halpenny at 9:30 a.m. and a tour of United Musical Instrument's ground water pollution clean-up at 11 a.m. Call 398-9093 for information.
Listings FISH CLINIC. Lakeside Park Ramada Number 1. Arizona Game and Fish is sponsoring a free fishing clinic from 1 to 5 p.m. Sunday, April 19. A limited supply of bait and 100 rod and reels will be provided on a fist come, first serve basis. Fishing license requirements are waived during the hours of the clinic for registered participants. Call Ed Davenport at 884-9394 for information.
ORGAN PIPE TOURS. Organ Pipe Cactus National Monument presents free, guided drives along the Ajo Mountain Drive. This two-and-a-half hour tour includes desert landscapes, geological formations and more. Tours are offered at 9 a.m. and 2 p.m. Thursdays through Sundays, through April. Tours are free, and begin at the Visitors Center. There is a $4 monument entrance fee. Call 1-520-387-6849 for directions and information.
TOHONO CHUL PARK. 7366 N. Paseo del Norte. 742-6455. Continuing through June 21: Re-Visions: Art From Recycled Materials. Xeriscape Landscape, a tour providing the essentials of dry land design, meets at 10 a.m. Saturday, April 18. The park offers additional guided tours for your enjoyment. Grounds are open from 7 a.m. to sunset daily. Exhibit hours are 9:30 a.m. to 5 p.m. Monday through Saturday, 11 a.m. to 5 p.m. Sunday. Admission is $2. Call 742-6455 daily events schedule.
WILDFLOWER TOURS. Tohono Chul's grounds curator Russ Buhrow has scouted out some of the best areas to view the desert's breathtaking wildflowers. Wildflower tours continue through April 29. They last approximately 45 minutes to one hour, and are at 10 a.m. Monday, Wednesday and Friday. Reservations are not required. Call 742-6455 for meeting location and information.
WILLIAM COTTONWOOD DAY. The Arizona Chapter of the Nature Conservancy celebrates William Cottonwood Day Saturday, April 18, at the Conservancy's Patagonia -Sonoita Creek Preserve with guided walks, story telling and displays and sales by Native Seeds/Search and other local groups. Call Jeffrey Cooper at 394-2400 for information.