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SDAG Field Trip September 26-28, 2025 to SAN ANDREAS FAULT:
EXPLORING QUATERNARY GEOLOGY ALONG BIG PINES HIGHWAY
2025 Annual Field Trip - September 26-28, 2025!
SAN ANDREAS FAULT: EXPLORING QUATERNARY GEOLOGY ALONG BIG PINES HIGHWAY
This year's trip takes us exploring the San Andreas Fault within the Transverse Ranges in the San
Gabriel Mountains. The trip takes place September 26 to 28, 2025 (Fri, Sat, Sun). We will be staying
two nights at The Lions Camp at Teresita Pines located about 6 miles northwest of downtown
Wrightwood. The trip is planned for half day Friday and full days Saturday and Sunday. The trip
focuses on geological stops along the San Andreas Fault from northwest of Wrightwood to Valymero
along Big Pines Highway which are included in SDAG's 2025 Field Trip Guidebook San Andreas
Fault: Exploring Quaternary Geology along Big Pines Highway, Wrightwood, CA. The field trip will
be led by Dr. Miles Kenney who completed his dissertation in this area and will explore over a dozen
scenic stops revealing the interrelationship between late Quaternary time-transgressive
sedimentation of the Victorville Fan, and related uplift, folding, and faulting of underlying bedrock.
Dr. Monte Marshall will also provide a historical perspective of the scientific understanding of the
San Andreas Fault in the 120 years since it caused the terribly destructive 1906 San Francisco
Earthquake.
Our reserved lodging includes cabins with bunkbeds, bathrooms, and showers. There are plenty of
beds in the cabins but if attendees prefer to sleep in their own tent or an RV, there is a camping
area with a large bathhouse and limited space/access for a couple RV's. There are no RV hook
ups. Please let me know if you're planning to sleep in a tent or wish to bring an RV. Accommodations
outside of Lions Camp at Teresita Pines are not included in the registration cost and must be
reserved independently (Airbnb's, Motels/Hotels, etc.).
The registration form on page 3 can be paid by credit, cash or check at an SDAG meeting; or you
can print page 3 and see instructions to mail your form with a check. Paid reservations must be
received no later than Sept 5th, 2025. The trip is limited to the first 50 paid.
*A detailed itinerary will be emailed to attendees prior to the trip. Pay for your spot now!
What is included in your fee:
- 2 Nights Lodging at Lions Camp at Teresita Pines:
- Cabins:
- 8 cabins with a total of 50 bunkbeds. No bedding provided. Bring your own
sleeping bag and pillow. One cabin is ADA accessible.
- Insulated and heated with bathrooms and showers inside each cabin.
- Tent Camping:
- Tent sites, some with tables and fire pits. Bring your own camping
equipment.
- A bathhouse (9 bathrooms, 4 showers, 5 sinks and electricity).
- Lions Camp Property:
- Lodge/Dining Hall with A/C, heat, electricity, large fireplace, and lounge area. Will use for evening talks and meals.
- Outdoor amenities - amphitheater, fire pits, volleyball, horseshoe pit, basketball, gaga pit, hiking trails, and access to Jackson Lake.
- Option for use of climbing wall, swimming, archery, or canoeing. Please indicate your interest in these activities on your registration form. I will try to arrange one or more activities.
- NO WIFI (landline phone for emergencies). NO pets allowed.
- 6 Meals: Friday dinner. Saturday hot breakfast, field sack lunch, hot dinner. Sunday hot breakfast, lunch. If you have vegetarian/vegan or other special requests please note on your registration form. Meals served cafeteria style (except for sack lunch) in Dining Hall. Hot and cold beverages available 24 hours a day in Dining Hall.
- Snacks and beverages throughout trip
- 2025 Field Trip Guidebook
- SDAG Trip Logo Item - souvenir insulated water bottle
What is NOT included in your fee:
- Transportation/4X4: Carpooling is highly recommended; we can help with coordination. Parking is limited at field trip stops. High Clearance 4X4 vehicles are recommended for a couple field trip stops.
- Fishing license
- Camping gear and bedding
- Other lodging accommodations: https://www.mthigh.com/site/mountain/during-your-stay/lodging.html
- Be sure to bring your cameras, scales, hand lenses, rock picks, and other geology gear!
Important Details:
- Registration is now CLOSED
- Field Trip is Limited to the first 50 paid attendees .
- September 26 - 28, 2025: Field trip starts at 12:00 pm Friday!
AND IS NOW FULL
- Registration form and a signed release of liability waiver is on pages 3 and 4.
*Please make sure all attendees sign it including kids and spouses
SDAG ANNUAL FIELD TRIP
San Andreas Fault in the Transverse Range
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