About us
Alamo Sierra Club (local branch of the Sierra Club) holds outings including hiking, camping, bicycling, backpacking, etc.
Upcoming events
15
31st Annual Basura Bash
Location not specified yetSign up for the 31st Annual City Wide Basura Bash!
https://basurabash.org/
https://basurabash.org/tributaries/You can sign up as an individual or a team
This is an Unhosted event - please direct any questions to the Basura Bash team at https://basurabash.org/
ATTENTION VOLUNTEERS!
Here’s what you need to know to help pitch in with the Basura Bash Annual Waterways Cleanup Event.
WHAT:
Volunteers will collect trash from the banks of San Antonio area waterways listed below.
WHEN:
Registation/Check-in: 8:30 AM – 9:00 AM (Some Tributary Captains may offer breakfast at 8:00 am – check Tributary page for info)
Waterways Cleanup: 9:00 AM – 12:00 PM
WHERE:
Various parks and other areas along the waterways.
IMPORTANT:
All volunteers must complete a liability form to participate in Basura Bash.
Please review our liability waiver and be prepared to sign it on site the day of Basura Bash.
Click Here to download the Liability FormThe waterways and greenways that define San Antonio need your help. Every year, our community unites for one city-wide mission: The 31st Annual Basura Bash Citywide Waterway Cleanup! But let’s be clear—we aren’t just picking up litter. We are protecting the places we love and restoring the beating heart of our city.
We all have one shared purpose: to remove debris from our beloved rivers and creeks and reclaim our special natural zones from basura.
The impact of just three hours is incredible. Last year, 2,130 volunteers worked side-by-side to recover over 105,000 lbs of trash from the San Antonio River Basin. This year, on March 7th, we are ready to do it again.
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Cleanup Date: Saturday, March 7, 2026
Time: 9:00 AM – 12:00 PM
Multiple cleanup locations across San AntonioBasura Bash’s Lifetime Impact
54,782 volunteers have participated
971.47 tons of bagged trash removed (1,942,930 lbs.!)
33.52 tons of recyclables collected (67,040 lbs.)
36.23 tons of metals recovered (72,460 lbs.)
7,566 tires removed from local waterways1 attendee
Canyon Lake Gorge Guided Tour
Location not specified yetWe will be attending the 9:30am tour
Buy your ticket here for $20:
https://canyongorgetours.com/public_tour
As of 25 Feb there were still 9 tickets left.
The tour will last 2 hoursGorge Park Entrance Address is located at 16029 South Access Rd., Canyon Lake, TX 78133. Please plan to arrive 15 minutes prior to your tour’s scheduled start time.
### An adventure more than 110-million years into the past.
The Canyon Lake Gorge was carved by the flood of 2002 when more than 67,000 cubic feet of water per second flowed over the spillway of Canyon Lake, marking the first time the spillway was used since the Canyon Lake reservoir was completed in 1964. The power of water sliced open the ground, exposing more than 110-million-year-old cretaceous limestone.
Tour Highlights:
- Geological Exposures
- Exposed Faults
- Fossil Treasures
- Dinosaur Footprints
Public Guided Tour - Average Duration: 2 Hours
$20.00 per person; up to 10 participants. Ages 7 and up.TRAIL RATING: MODERATE
A hike through the Gorge with an experienced guide, highlighting geological and aquatic features (fossils, dinosaur tracks, aquifer channels, and waterfalls). Approximately 1.25 miles. Several stopping points for photos and educational information. This tour might be modified during the summer due to extreme heat.
1 attendeeAlamo Sierra Club Monthly Meeting
Eco Centro, 1802 N Main Ave, San Antonio, TX, USThe Alamo Group of the Sierra Club holds its general meetings the 3rd Tuesday of most months. They're always free and open to the public.
Meeting schedule
Informal get-to-know-you 6:00 pm to 6:15 pm
Announcements: 6:15 pm to 6:30 pm
Featured program: 6:30 pm to 8:00 pm
Venue:
William R. Sinkin Eco Centro, 1802 North Main AvenueEco Centro is located at San Antonio College, 1802 North Main Avenue @ Locust Street. There is a parking lot adjacent to Eco Centro which is entered from Locust Street.
We can also use SAC parking lots 14, 15 and 17 (map of parking lots) to the north, west and south of the STIC building across North Main Avenue from Eco Centro. Parking is also allowed on the residential streets to the east, north and south of Eco Centro.
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Past events
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