Tucson Weekly: Listings: Outdoors (February 11

OUTDOORS
BIODIVERSITY WALKS. The Southwest Center for Biological Diversity offers "biodiversity" walks at 9 a.m. the last Sunday of every month. Call Shane Jimerfield at 623-5252, ext. 302, for reservations and directions.
Listings MAPPING A WILDERNESS. Hike or mountain bike Forest Service roads in the Canelo Hills to contribute to a regional habitat conservation proposal on Saturday and Sunday, February 13 and 14. There is an introductory training session at 7:30 p.m. on Thursday, February 11, at the Water Resources Research Center, 350 N. Campbell Ave. Call 327-1129 for information.
SABINO CANYON VOLUNTEER NATURALISTS. Enjoy free weekly activities at Sabino Canyon, continuing through the month of April. Activities include guided nature walks and panning for sand rubies. Call 513-0231 for information.
TOHONO CHUL PARK. 7366 N. Paseo del Norte. 742-6455. 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. Greenhouse hours are 10 a.m. to 4 p.m. daily. Admission is $2. Call 742-6455 for a daily events schedule.
WAREHOUSE DISTRICT WALKING TOURS. Walking tours of Tucson's Warehouse Historic District continue every second Saturday, through April 1999. The tour groups meet at 8:50 a.m. in the lobby of the Hotel Congress, 311 E. Congress St., with tours beginning at
9 a.m. and lasting approximately one and one-half hours. Hosted by an expert on the history of the area, the free tours cover a section of approximately one mile and include an overview of the area's history and brief visits to several artist's studios. Groups are limited to approximately 20. Participants should dress comfortably and plan to be outdoors for the majority of the tour. RSVP to 624-9977 by 5 p.m. on the Thursday prior to the tour date.