Field Trip: Geology of San Diego County’s Peninsular Ranges – FULL (waitlist)

Special Earth Science Series!

FIELD TRIP IS FULL – PLEASE CALL ABDNHA at 760-767-3098 to get on waitlist

Leader: Geologist Don Barrie

Note the  start and end locations detailed below. Don will lead the group on an exploration of the rocks along Sunrise Hwy., west of Borrego Springs. The rocks in this area comprise part of a regional geologic suite known as the Peninsular Ranges Batholith (PRB), which extends from southern Baja, California, northward into the Palm Springs area. We’ll meet near the intersection of Sunrise Hwy. and Interstate 8, then follow Sunrise Hwy. into the Laguna Mountains, stopping to examine rock exposures along the way. The last stop will be in Julian, where the group will tour the Eagle/High Peak gold mine and learn about the gold rush in Julian during the 1870s. On the field trip, we’ll discuss the geologic story of how the gold got into the rocks. During the gold mine tour, we’ll learn how hard-rock miners got the gold out of the rocks. To register, go to www.abdnha.org, or call the Nature Center at 760-767-3098. General Public: $20, Members: $14, Volunteers: $10. Please note that an additional $14 entrance fee per person is required, payable upon entry to the mine.

Start and end locations details: 9:00 am – 3:00 pm, Sun., Jan. 25, ending at the Eagle-High Peak mine in Julian. Meet at 9:00 am along Sunrise Hwy. (County Rd. S1), about 1/4-mile north of the Interstate 8 Sunrise Hwy. exit, in a dirt parking area along the east side of the road. Bring lunch and water. 2WD okay. Please check the local weather in Mt. Laguna and dress accordingly (it may be chilly). Carpooling is highly recommended. Heavy rain or snow cancels. The trip ends at the Eagle-High Peak Mine in Julian.