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Anza-Borrego Desert State Park® Interpretive Activities are free and open to the public unless otherwise noted. Events meet at the ABDSP Visitor Center unless otherwise noted. Be aware that there is a $10 Day Use Fee at the Visitor Center.

8:30 a.m. Hike – Calcite Canyon Spectacular     5-6 Hours
Join Volunteer Naturalist Ted Caragozian and explore the sandstone canyon country around the Calcite Mine. You will follow the Middle Fork of Palm Wash up over some small dry falls to a slot canyon, check out the mine, and see a demonstration of calcite’s interesting optical properties. Meet at the Calcite Mine Road, near mile 38.2, east on Highway S-22. Parking is available on both sides of the highway. Wear sturdy footwear, a hat, and carry water. This hike is rated moderately strenuous.

10:00 a.m. Talk – Bighorn Sheep: Symbol of Desert Wilderness     1 Hour
Join Volunteer Naturalist Tony DeLorenzo to find out about bighorn sheep. Where did they come from? What is their history here in the desert? What are their prospects for the future?

3:30 p.m. Walk - Petals, Leaves, and Pollen     1 Hour
Join Park Interpretive Specialist Regina Reiter in the Visitor Center Garden for an imaginative and satisfying exploration of flowers and how to put names to all those confusing blooms. No nomenclature expertise is needed!

4:00 p.m. Hike – Big Spring Ramble     2.5 Hours Join Volunteer Naturalist Ted Caragozian to discover an oasis in the transition zone and see what’s blooming. Meet at the pullout at mile 11.3 on highway S-22 for an easy-paced walk to Big Spring in Tubb Canyon. Wear sturdy footwear, a hat, and carry water. This hike is rated moderate.