ACTIVITY CALENDAR
Anza-Borrego Desert Natural History Associaton
P O BOX 310, Borrego Springs, CA 92004  760-767-3098
Important Program Information
Unless specified otherwise in the activity descriptions below, all hikes and field trips have a
15 person limit and they begin in the ABDNHA parking lot.
Many of our programs are in high demand and often have waiting lists.  If you register for a program and cannot attend please contact our Borrego Nature Center (760-767-3098) so that others can be notified to attend. 

All of our hikes are now rated from EASY to STRENUOUS  View the Rating System

SPECIAL DESERT LECTURE SERIES WEBINAR
Apr. 25, Thu., 6:30 p.m. – 8:00 p.m. 
Lithium and the Salton Sea
Speaker: Jim Turner, Director and Chief Operating Officer of Controlled Thermal Resources

The webinar is free but registration is required:  REGISTER


ABDNHA's webinar in 2022 with Jim Turner about lithium extraction at the Salton Sea was our most highly attended webinar ever.  Controlled Thermal Resources (CTR) is one of three companies that will be extracting lithium from facilities on lands just south of the sea.  Construction of CTR's plant is now underway.  Jim returns tonight with an update on lithium extraction at the Salton Sea, an explanation of how the extraction will take place, and background history of geothermal power production at the sea. For millions of years the Salton Sea basin has been stretched and pulled apart by the action of the San Andreas fault, resulting in what is called the Salton Trough. 

For all of those millions of years water has poured in from the surface, water that is rich in minerals.  At a depth of 8,000 feet below the surface vast amounts of superhot water, or brine, holds one of the richest sources of lithium in all of North America.   The geothermal industry has made use of that that hot water for decades, extracting the hot water from deep beneath the earth, using the steam to generate geothermal electricity, and then pumping the water back down into the earth. 

Lithium extraction adds one step to that process; lithium is taken out of the water before it is pumped back down.  Lithium is essential for the needs of America’s electric future, for electric vehicles, computers, solar power storage, batteries, and communication. The Salton Sea basin is America’s largest source of the important metal and one of the world’s largest, with annual production estimated to be as much as 600,000 tons. There are very few large sources of lithium in North America. The extraction process of removing lithium from super-heated brine 8,000 feet below the surface also has the potential to make the Salton Sea lithium extraction process one of the greenest lithium mining projects in the world.  


PHOTOGRAPHY

Moonrise & Sunset at Fonts Point
Apr. 23, Tue., 6:15 p.m. – 8:30 p.m.
This is an ABDNHA Members Only Activity    
Photography:  Moonrise over the Badlands & Sunset over the Mountains
Leader: ABDNHA Program Director Mike McElhatton

This is a newly listed program that does not appear in the Spring Sand Paper This is a special photography program for member photographers.   Come along with us to Fonts Point to photograph the setting of the sun to the west ( at 7:23 pm.) , quickly followed by the moonrise over the Borrego Badlands ( at 7:27 p.m.) to the east.  We will stay as long as the light allows.   We will leave the ABDNHA parking lot at 6:15 p.m., allowing enough time to reach Fonts Point and get set up for the moonrise and sunset.  Fonts Point always requires a high clearance a vehicle adequate for sand.  The road will be checked prior to the activity and the group will be updated with current conditions and that will determine acceptable vehicles.  We will carpool from the ABDNHA parking lot. All levels of experience and photography equipment is welcome,  Bring snacks and your favorite beverage!  22 max.  No charge, ABDNHA Members only, Register at Nature Center, 760-767-3098.

BORREGO ROCK AND GEM CLUB

Apr. 24, Wed., 2:00 p.m. - 3:00 pm
Borrego Rock and Gem (BRAG) Club Meeting
Meet at ABDNHA Activity Room.

May 3 Fri. 9:00am-2:00pm (Depart from ABDNHA)
4WD Yaqui Well to Culp Valley
Leader:Dave Walters

Depart ABDNHA parking lot 9:00am travel to Yaqui Well Rd 4WD trail elev 1427’ft . Drive along San Felipe Creek stop at flats below Bitter Creek Canyon to view the wildflower bloom. Traveling on we stop briefly at Stuart Spring to view birds and plant life. Continuing on to The Slab elevation 4200’ft with views of the Salton Sea and surrounding mountain peaks, we take lunch here. After lunch, we drive to Culp Valley say our goodbyes and return to the pavement at S22 aka Montezuma Vly Rd. Off road distance 17.5 mile. Call or visit the ABDNHA Nature Center to register 760-767-3098.


May 4, Sat., 8:00 a.m. - TBA
Hike: Volcan Mountain 
Hike Leader:  Rachel Rench - ABDNHA Volunteer

This moderately strenuous 5.3 mile hike climbs 1300' from the trailhead on Farmer's Road through an oak forest until reaching a Summit ridge with wide open views of the desert to the East, and San Diego County to the West.   Large signs on both sides of the ridge identify the mountains you can see off in the distance.   Be prepared for some steep climbing on a fire road on the way up, with stops along the way to admire the views of the apple orchards and vineyards near Julian.   On the way down, we'll take the Five Oaks Trail for a different perspective.  Meet at ABDNHA at 8:00 a.m.  No charge, ABDNHA Members only, Register at Nature Center, 760-767-3098.