What we're about

The Sierra Club is America's oldest, largest and most influential grassroots environmental organization with the Mother Lode Chapter serving 24 Northern California Counties. Enjoy a variety of events offered by three of the Mother Lode Chapter (http://www.sierraclub.org/mother-lode)Groups: "Stockton" Delta-Sierra Group (http://www.sierraclub.org/mother-lode/delta-sierra) (DSG), "Modesto" Yokuts Group (http://www.sierraclub.org/mother-lode/yokuts) (YG), and "Sonora" Tuoloumne Group (http://sierratuolumne.org/) (TG) which make up the Central Gold Country. Hiking, gorge scrambling, kayaking, skiing, biking, camping, service trips and other events are lead by Sierra Club trained leaders.

Most leaders have many years of experience leading hikes and often have a great knowledge of many open space areas and parks in the Central Gold Country: Mokelumne Wilderness, Eldorado National Forest, Carson-Iceburg Wilderness, and Yosemite; and the East Bay and Coastal Bay Area. Leader styles vary greatly. Some are very fast paced with few stops; others travel at a very slow pace and stop frequently. You are required to be properly equipped and able to stay with the group so be sure to check with the leader if you have any questions about the outing. The difficulty of each trip is usually rated with a Classification that is explained in the Important Outings Information. Also, each outing participant must have the Essentials, which are also listed in Important Outings Information.

All adults are welcome, including those who are not members of Sierra Club. We generally meet at a designated local parking area and then carpool to the event site (though Sierra Club does not officially organize carpools) which can be located nearby or several hours away. We also have fun off the trail with social events such as dinners, movie nights, Christmas Parties, and potlucks.

Happy Trails!

Upcoming events (4+)

Del Puerto Canyon: The Jewel of West Stanislaus County In Peril, Yokuts Program

"Just when we were starting to enjoy meeting in person again, the church Social Hall will be closed for remodeling until sometime in the Spring. We're back to meeting by Zoom. Check your copy of the January/February Valley Habitat (paper copy or digital) for the Zoom link." Or to attend this Zoom format program, please email our Chair, Anita Young, at [masked] any time the week before and she will send you the link.

Time: Jan 21,[masked]:00 PM
January 21, 2022
Del Puerto Canyon: The Jewel of West Stanislaus County In Peril

Please join photographer and Patterson native Elias Funez, as he goes over the extensive history of Del Puerto Canyon paired with a visual collection of photos and videos he’s taken over the years. The presentation will discuss the current efforts of the Del Puerto Water District’s plans to create a dam over the historic Gateway of the Del Puerto Canyon and what the Save Del Puerto Canyon group has done so far to oppose those plans and continue conversations to preserve this important natural and cultural area.

For each months program details click here (http://motherlode.sierraclub.org/yokuts/Yokuts_Group/Yokuts_Home.html) and you will be re-directed to our webpage

Day Hike 3B at Las Vaqueros Reservoir

Mall Park & Ride

This will be a moderate+ 9-10 mile loop hike at Los Vaqueros. participants must be appropriately fit for this hike. Bring food & water.

Due to the participant limit, please don't sign up if you're only thinking of going. If you are signed up and can't make it, please cancel at least 2 days in advance.
Meet up at the Mall park & ride at 8:00, OR at the old park & ride in Tracy (now Paneras) at 8:30

NEW INFO: Sierra Club now requires that all participants carry a Medical Form:


If you can print, fill out, and bring it with you to the event, it will save time. And you can re-use the form for other outings.

Pre-Outing: All participants must be fully vaccinated and boosted. If you are experiencing COVID symptoms or you are sick, you should not attend this outing; if you attempt to attend an outing, the outing leader may prohibit you from attending the outing. That goes for overall physical fitness as well.

Winter visits to our national and state parks

Online event

Winter visits to our national and state parks
Presentation by Tim Viall
Monday, January 24, 2022 @ 7pm
hosted by Delta-Sierra Group per Zoom

Join us for an enjoyable winter visit to nearby or more distant national or state parks presented by Tim Viall. He opens with photos and details of deep winter visits to Glacier and Yellowstone national parks in recent years, full of wildlife and lovely nearby Montana and Wyoming towns. And also includes winter options in closer-to-home national parks, such as Crater Lake, Lassen and Yosemite, and state parks like Calaveras Big Trees and Sugar Pine Point State Park (home to some of the cross-country ski trails used in the 1960 Winter Olympics).

Viall spent his early career in advertising sales and management for five daily newspapers (Stockton Record, Sacramento Bee, Palo Alto Times Tribune, Spokane Spokesman-Review, Toledo Blade), and 20 years as a nonprofit executive, retiring from Stockton’s Emergency Food Bank nine years ago. For the past 8+ years, he has appeared in the Record newspaper each Tuesday as their regional travel writer, focusing on the valley, California and nearby Western states.

Backpacking: The Basics, a Zoom presentation (Yokuts Group)

Online event


Thinking about trying out backpacking? Not sure where to start? Do you have specific questions? Read on…

This presentation is limited to 8 participants, making it easier to interact with Jeff during the presentation. Topics to be discussed: preparation, gear, food, safety and environmental impact. We will begin at 7:00 p.m. All topics will be covered in the first 60 minutes. An additional 30 minutes will be devoted to a questions and answers session for those who choose to remain on the Zoom.

If you would like to attend this presentation but the day and time of this presentation do not work for you, please email/text Jeff to request a better day/time. With enough interest, Jeff will schedule a presentation to meet your needs. Watch for notices of future presentations on this site, the Yokuts Facebook Page, the Yokuts Instagram and the Mother Lode Chapter of the Sierra Club Outings section. Presenter: Jeff Olson, [masked], phone/text[masked].

Want to test your equipment and enhance your skills? Jeff is planning some easy beginner backpacking trips this coming Spring and Fall. Attend this Zoom presentation to learn more.

Past events (1,047)

Photos (2,238)

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