What we're about

The Geo-hikes Meetup group is open to hikers, geologists and geology students, plus anyone interested in learning a little geology while hiking.

Visit Events\Calendar\Past for the last few years for a quick appreciation, with photos, of Geo-hikes events. For example:

Crooked Creek, White Mtns: https://www.meetup.com/Geo-hikes/events/261057991/

Santa Cruz Island: https://www.meetup.com/Geo-hikes/events/260807872/

Deep Canyon and Santa Rosa Mtns: https://www.meetup.com/Geo-hikes/events/258848834/

Hikers, do you want to learn a bit of field geology and map reading skills while hiking, and sometimes camping in the western USA? Interested in participating in Geo-hikes and trips to scenic, and sometimes remote, locations? Want to learn about the fascinating history of the earth at these locations while on the move? If yes, then events hosted and led by the Geologic Maps Foundation might be of interest to you. Plus, the participants meet others with similar interests while getting great exercise. You do not have to be a geologist to attend but an eagerness to learn some basic geology and map reading skills are a must.

Professional geologists can share their knowledge and experiences (as co-leaders) with geology students and non-geologists while exercising and returning to, for many, why they got into geology in the first place.

Geology students (at any level) will gain field experience, an opportunity to interact and make contacts with professional geologists that could be helpful in the future, and with lots of outdoors exercise in interesting geologic settings.

There are a number of geo-hikes scheduled for the 2020-21 season and more will be added. "Spreading the word" about these events is most appreciated. Interaction of professional geologists and geology students with hikers, that are not geologists, informs the public about geology and its importance.

Geo-hikes has limited the size and frequency of its events due to concerns about the spread of COVID-19. Events are still happening but are following more restrictive guidelines that are posted with the event summary.

Most of the Geo-hikes events and courses are free while a few are fund-raisers and require a donation to cover expenses and operating costs for the longer trips. The Foundation is a tax-exempt nonprofit ,IRS 501 (3) (C), with a scientific educational and research focus. Donations are tax deductible and go towards the expenses of the event and the operating cost of the Foundation.

Geo-hikes also organize and lead customized geologic field trips for professional organizations and companies to various areas in the western US and Baja California. Trips are great educational and team building experiences. Please email us at: geologicmapsfoundation@gmail.com for more information about the customized trips.

For more info on the Geologic Maps Foundation: http://geologicmapsfo... (http://geologicmapsfoundation.org/about.html)

Upcoming events (4+)

White Mountains, CA, hiking & field geology, UC Crooked Creek Research Station

PLEASE READ ALL THIS COMPLETELY. DO NOT GO ON THE WAIT LIST IF YOU THINK YOU CANNOT MAKE IT, THAT REALLY CREATES A LOT OF WORK FOR US.

YOU MUST BE FULLY COVID-19 VACCINATED TO ATTEND (UC REGULATIONS & STATION WILL ASK FOR PROOF BEFORE YOU SHOW UP).

MEMBERS THAT HIKE WITH GEO-HIKES FREQUENTLY WILL HAVE PRIORITY TO ATTEND THIS EVENT.

IF YOU ABSOLUTELY KNOW YOU CAN MAKE THE TRIP AND CAN AFFORD THE COST ($450/PERSON, INCLUDES ROOM & BOARD AT UC CROOKED CREEK STATION), THEN SIGN-ON, YOU MUST ANSWER THE QUESTIONS FULLY (A SIMPLE YES DOESN'T DO IT), AND YOU'LL BE PUT ON A WAIT LIST.

YOU NEED TO BE A GOOD HIKER AND ABLE TO SPEND FOUR DAYS & THREE NIGHTS AT AN ELEVATION GREATER THAN 10,000 FEET. WE WILL BE DOING SOME LONG CROSS-COUNTRY HIKES AND YOU MUST HIKE WITH THE GROUP.

VERY IMPORTANT AT THIS LATE DATE: IF YOU GO ON THE WAIT LIST FOR THIS EVENT WE NEED YOU TO SEND YOUR FULL NAME AND EMAIL ADDRESS TO [masked] RIGHT AWAY, STATE WHAT EVENT YOU ARE ON. THIS IS A NECESSITY TO BE ON OUR OVERNIGHT EVENTS AND TO RECEIVE UPATES AND ATTACHMENTS, SOME TO SIGN. IF YOU HAVE BEEN ON OUR EVENTS BEFORE DON'T ASSUME WE ALREADY HAVE OR CAN FIND YOUR EMAIL EASILY, SEND IT AGAIN.

Geo-hikes has a reservation for 4 days and 3 nights at the UC Reserve's White Mtn. Crooked Creek Station that has lodging and showers. The Station prepares and serves all meals; we have to help with clean-up of meals and our rooms before departing. The Station is above 10,000 ft elevation. The cost ($450/person) is based on room & meals. Station costs have nearly doubled since the last trip we did in 2019.

The White Mtns are a high elevation desert range, unknown to many, and Crooked Creek is in a pretty remote location within the range. If you want to get away from the hiking crowds of the Sierra Nevada, see something new, this is a good start. The range is very scenic, pristine, and the geology is very complex and interesting too. The hiking itinerary is not set yet but will probably include White Mountain Peak (14,252-foot; 4,344 m) and several of the lesser peaks in the Crooked Creek area. We ran this event in 2019 and it probably had the most favorable reviews of any of our events.

This is a fund raiser for the nonprofit GMF (Geologic Maps Foundation), www.geologicmapsfoundation.org. GMF is a 501 (c) (3) organization and donations are tax deductible. Donations pay for event expenses (in this case the facility) and GMF operating costs. Payment will be by check to the Geologic Maps Foundation and payment instructions and further trip details such as detailed directions and what to bring will be provided later. Please read the cancellation policy.

DISCLAIMER / RELEASE OF LIABILITY*
(IMPORTANT, PLEASE READ BELOW IN ITS ENTIRETY):
The hike host is a volunteer and not responsible for the group. Safety should be a priority for everyone in the group. Please treat this meet-up as hiking with a group of friends. If you become fatigued and unable to continue the hike, it is expected you will advise the hike host of this and return to our starting point on your own. If you are able to proceed, it is expected that you will maintain line of sight with other members of the group at all times and help to promote the group’s safety and fitness goals.

Outdoor sports and other events we plan can be inherently dangerous and accidents may happen. By participating in any posted event, you are taking responsibility for your own safety and well-being. The Geo-hiking Meetup Group and its organizers are not trained leaders and we do not confirm the qualifications of any of its members to lead or participate in trips. All participants take full responsibility for their own actions.

If you choose to sign up for this or any Geo-hiking Meetup event, you are releasing the Geo-hiking Meetup Group and its organizers from all liability in case of possible injuries. Your personal safety depends on your own judgment and experience.

Anyone 18 yrs. or younger must be accompanied by a parent or legal guardian.

12
Santa Rosa Island Backpack Ford Point

Needs a location

TWO MORE SPACES AVAILABLE NOW. IF YOU REALLY WANT TO GO MESSAGE ME BUT PLEASE DON'T IF YOU ARE NOT COMMITTED TO GOING.

We have room for two more on our backpack trip to Ford Point on Santa Rosa Island, 10/14-16/2022. Santa Rosa Island beaches are pristine and provide a glimpse of the southern California coastline from a couple of hundred years ago. Its pretty unique and I keep going back. On the other hand, it is not the easiest backpack and you need to carry water. We are required to camp on the beach by the National Park Service.

If you are new to the group send me a message with a few words about your hiking experience. You'll go on a waitlist and I will add you to the trip after looking at your experience. Preference is given to Geo-hikes regulars.

You are responsible for making and paying your Island Packers boat reservations to and from Santa Rosa Island. Book: 10/14, 8:00 AM departure to SRI from Ventura and 3:30 PM return to Ventura on 10/16. IMPORTANT: Make sure you are on the trip before booking anything. It is always best to call Island Packers to make reservations. Sometimes online shows as full but calling will get you a spot.

We will backpack in the southeast quadrant of Santa Rosa Island to check out the trails, geology, plants, and beach camping. We'll head to Ford Point (10 miles one way). Route to Ford Point has some elevation gain as it is along the Wreck Road that crosses the main ridge of the island. You'll need to carry at least 3 liters of water, possibly 4 if it is warm. Along the route, some of the time will be spent by Thom describing and photographing locations for subsequent Geo-hikes' backpacks, and to place in a hiker's geology guide to the island being developed. You can go as fast as you want as long as you tell me your plans and I make sure you can find the route and Ford Point,

Fresh water sources are limited on the island and available near the Pier, at Water Canyon Campground, Clap Springs (off the Wreck Road by about a mile), and San Augustine Canyon near the beach (just east of Ford Point). You'll need to purify water from the last two sources.

The National Park Service (NPS) has a lot of helpful information and maps at https://www.nps.gov/chis/planyourvisit/backcountry-beach-camping-on-santa-rosa-island.htm
IMPORTANT: Please read the NPS rules and regulations too.

4
Telescope Peak Geo-hike, Death Valley

Needs a location

EVENT IS CLOSED, FILLED TO THE MAX AND A BIT BEYOND!

PLEASE READ THE BELOW CAREFULLY:

Our annual Geo-hike event. There's a wait list for this event and the most active members of Geo-hikes have priority plus the group size will be small. If you have never done a long hike with Geo-hikes then please provide a short description of your hiking abilities. Keep in mind this is not an easy hike and most of the trail is above 9,000 ft where many find long hikes difficult.

We'll hike to the top of Telescope Peak (11,049 ft) in the Death Valley National Park on Friday 10/21. It's a 14 mile roundtrip hike from Mahogany Flat with a net elevation gain of a tad over 3,000 ft (It's the same trail to the peak and the return to Mahogany Flat). Our meetup point is is Wildrose Campground at 5:00 PM on Thursday 10/20 we'll camp there Thursday, Friday, Saturday nights. At Wildrose the campground sites cannot be reserved (first come gets the camp sites) and one of the reasons this event starts late Thursday afternoon (Wildrose does fill often on the weekends). On Friday morning we can the decide which vehicles to take to the Telescope Peak trailhead at Mahogany Flat (8133 ft), the upper portion of the road is rough and high clearance vehicles do best. On Saturday and Sunday we will do some local hikes-I'd like to scout out some new trails, like Pinto Mtn and Tucki Mtn.

This is car camping and you will need to bring all your meals, and camping items. Potable water is available at the Wildrose Campground. There are fire rings at the campground so please bring firewood.

Weather for the hike should be in 70's and 80's and very sunny (there's little shade on the trail), so bring lots of sun protection and water. There is a slight chance that it could be in the low 90s midday, possibly very windy, or a thunderstorm (we'll not be taking any risks with that and will call the hike if there is a chance of a thunderstorm). Please check the weather right before trip: Google search, mahogany flat campground weather

WARNING: TELESCOPE PEAK, MAHOGANY FLATS, AND WILDROSE CANYON ARE IN A REMOTE PORTION OF THE DEATH VALLEY PARK (SOUTHERN PANAMINT RANGE). YOU'LL NEED TO LOOK AT A ROAD MAP IN SOME DETAIL BEFORE DRIVING OUT MAKE SURE YOUR VEHICLE AND ITS TIRES ARE IN GOOD SHAPE. TAKE PLENTY OF WATER IN YOUR CAR FOR THE DRIVE OUT. IF YOU WANT TO BE ON A PAVED ROAD ALL THE WAY TO WILDROSE CAMPGROUND THEN TAKE HWY 190 FROM HWY 395, JUNCTION IS JUST SOUTH OF OLANCHA. ON THE OTHER HAND IF YOU TAKE THE HIGHWAY 178 THROUGH TRONA YOU'LL BE ON A GRAVEL ROAD IN LOWER PORTION OF WILDROSE CANYON. KEEP IN MIND, THE SLOWER ONE DRIVES ON GRAVEL ROADS THE LONGER BETWEEN FLAT TIRES. BY THE WAY, CAN YOU FIX A FLAT? YOU'LL BE DRIVING THROUGH THE PANAMINT VALLEY AND OTHER DESERT VALLEYS THAT ARE STILL HOT THIS TIME OF YEAR (+100 F). THERE IS NO CELL COVERAGE IN WILDROSE CANYON AT THE TRAILHEAD, ON MUCH OF THE TRAIL, AT THE CAMPGROUNDS, OR IN MUCH OF THE VALLEYS. ON THE CREST OF PANAMINT RANGE I SOMETIMES GET CELL COVERAGE BUT ITS SPOTTY.

You are responsible for all your meals and getting to the meetup point-make sure you understand the route there and if you haven't been there before I advise against driving in the dark.

Wildrose Campground: https://www.nps.gov/deva/planyourvisit/wildrose-campground.htm

Mahogany Flat: https://www.recreation.gov/camping/poi/10088780

More info on hike:
https://www.summitpost.org/telescope-peak/150584

https://rootsrated.com/stories/everything-you-need-to-know-about-hiking-to-tallest-point-in-death-valley-national-park

Here's a link to the geologic map of Telescope Peak:
https://ngmdb.usgs.gov/ngm-bin/pdp/zui_viewer.pl?id=15515
It's truly amazing the amount of cross county hiking in extremely rugged and complex terrain these geologists accomplished.

Please do not sign-on to this hike if you are not very serious about going, know that you won't be called for work or have the possibility of other last minute issues that prevent you from going (be fair to others that end up on the wait list).

4
Moderately difficult hike with some geology, Register Ridge, Mt. Baldy

PLEASE KEEP COVID-19 SAFETY IN MIND AND THE HEALTH CONCERNS OF OTHERS ON THESE HIKES.

GEO-HIKES ARE PURPOSELY KEPT TO A SMALL NUMBER. IF YOU ARE ON THE WAITLIST JUST BEFORE THE EVENT STARTS PLEASE DO NOT SHOW UP. ALSO, PLEASE DON'T SIGN ON TO THE EVENT IF YOU THINK THERE'S A CHANCE YOU WON'T MAKE IT, GIVE OTHERS A CHANCE.

NO DOGS. TRAIL IS TOO STEEP AND NARROW.

NO GUESTS. HAVE THEM JOIN.

Learn the wonders of field geology and a bit about Mount San Antonio (aka Baldy), with plenty of exercise; elevation=10,068'. We'll see the mid-crustal Vincent thrust, the Pelona Schist, 122 million year old Wilson Diorite, Precambrian gneiss, loads of landslide and debris flow deposits, discuss the nearby San Andreas fault plate boundary; plus do a beautiful and somewhat challenging hike. About 9 miles round trip (Manker Flat and back) and 4,000 ft elevation gain. Go up Register Ridge and descend via Devil's Backbone. It won't be the fastest hike up to top of Baldy but it won't be the slowest either. You'll need to be in good hiking shape, it's not that easy (steep!). We might make a late lunch at the Notch, if it's open and if there's interest. After the Notch you are on your own: take the ski lift down or hike the service road back.

Bring water, lunch, your normal hiking stuff, good boots or trail runners. Usually lots of sun on these trails, so a hat and sun block. It will probably be warm but weather this high can change quickly, so bring something warm just in case. Check the weather forecast and this posting before going.

To reach trailhead: Interstate 210 to Baseline Road (exit 52) turn left on Baseline Road, right on Padua Avenue, right onto Mount Baldy Road, pass through Mount Baldy Village and continue to Manker Flats Campground. Park along Mount Baldy Road. We'll meet at trailhead sign near intersection of Falls and Baldy Roads.

You'll need a National Forest Adventure Pass to park at Manker Flats (purchased at Big 5, REI, some gas stations near base of mountains).

For those of you with lots of interest in the geology look at these:

Geologic maps of the Mount Baldy area:
https://ngmdb.usgs.gov/Prodesc/proddesc_71720.htm
https://ngmdb.usgs.gov/Prodesc/proddesc_71722.htm

Informative geologic guidebook by Professor Nourse at nearby CalPoly Pomona Geology Dept at:
http://geology.cpp.edu/janourse/ArticlesAbstracts/SCGS%20ESGMRoadLogPDF.pdf

DISCLAIMER / RELEASE OF LIABILITY

IMPORTANT, PLEASE READ BELOW IN ITS ENTIRETY:

The hike host is a volunteer and not responsible for the group. Safety should be a priority for everyone in the group. Please treat this meet-up as hiking with a group of friends. If you become fatigued and unable to continue the hike, it is expected you will advise the hike host of this and return to our starting point on your own. If you are able to proceed, it is expected that you will maintain line of sight with other members of the group at all times and help to promote the group’s safety and fitness goals.

Outdoor sports and other events we plan can be inherently dangerous and accidents may happen. By participating in any posted event, you are taking responsibility for your own safety and well-being. The Geologic Maps Foundation Meetup Group and its organizers are not trained leaders and we do not confirm the qualifications of any of its members to lead or participate in trips. All participants take full responsibility for their own actions.

If you choose to sign up for this or any Geologic Maps Foundation Meetup event, you are releasing the Geologic Maps Foundation Meetup Group and its organizers from all liability in case of possible injuries. Your personal safety depends on your own judgment and experience.

** Anyone 18 yrs. or younger must be accompanied by a parent or legal guardian.

12

Past events (273)

Chorro Grande trail to Pine Mtn Ridge and back.

Needs a location

Photos (2,285)

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