Calendar

We are looking for service-oriented volunteers to help inspire the next generation of stewards! The Authority will be attending the Scouting Expo at Santa Clara High School  on March 1 from 12-1 p.m. in order to share service opportunities. This is ...

Join us to help re-seed native grasslands at the staging area of Máyyan 'Ooyákma! We will be continuing our work to restore native grasses and wildflowers in the staging area to reduce the spread of invasive species to ecologically sensitive areas...

This training is a refresher course in survey 1-2-3 for anyone who is able to help us with preserve patrols and data collection at Mayaan Ooyakma Coyote Ridge this coming spring season. We will demionstrate the set up of the welcome table for spring ...

Join VET's staff from 9 a.m. to 12:30 p.m. on Saturday, January 11 or Sunday, January 12, 2025 to learn all about how to use interpretive techniques for engaging and serving our community! Context Interpretive Host Training is our foundation for a...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

Interpretive Docent Training Starting Wednesday January 15, 2025. Interpretive Docent Training with the Open Space Authority will introduce you to a new method and style of communication that will allow you to connect people to the nature that you l...

TM Volunteer support request for this day of Trail tread in Sierra Vista OSP. Slough removal of main trails of Kestrel and Boccardo. Hand tools & basic hard hats in use. Meet in the main staging area parking zone at 9am and take specific instruction ...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

This is a gentle walking program for people who are dealing with grief. 

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

TM Volunteer support request for this day of Trail tread in Sierra Vista OSP. Slough removal of main trails of Kestrel and Boccardo. Hand tools & basic hard hats in use. Meet in the main staging area parking zone at 9am and take specific instruction ...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking Authority Ambassadors for representing us at the 'State of the Valley'. The Authority has helped to sponsor the event and is looking for volunteers to represent and share information about our agency and work. Here is a description of ...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

TM Volunteer support request for Coyote Valley OSP. As spring approaches and we prepare for the glory and the consequence, we seek trained TM support in and around the staging area of Coyote Valley OSP. Power tools and hand tools will be available an...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

This is a gentle walking program for people who are dealing with grief. 

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

    Help us engage with members of our community at Mexica (May-she-cuh) New Year! OSA staff will provide a booth with Spanish language materials, engaging games, furs and skulls to engage with visitors! Spanish speaking volunteers are desired but...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

    Help us engage with members of our community at Mexica (May-she-cuh) New Year! OSA staff will provide a booth with Spanish language materials, engaging games, furs and skulls to engage with visitors! Spanish speaking volunteers are desired but...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

TM Volunteer support request for this day of invasive removal at the Furtado Restoration site in Sierra Vista OSP. As spring sets up we need to give some love and attention to this ongoing restoration site. There are invasive plant populations we can...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

This is a gentle walking program for people who are dealing with grief. 

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

TM Volunteer support request for this day of invasive removal at the Furtado Restoration site in Sierra Vista OSP. As spring sets up we need to give some love and attention to this ongoing restoration site. There are invasive plant populations we can...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

photo by VTM Bruce RichterThe Open Space Authority is excited to welcome all Volunteer Trail Masters to our offices at 33 Las Colinas Lane, "33LC" as we like to call it, on Saturday, March 22 from 9:00 a.m. to 10:30 a.m. for a friendly and informatio...

Help us engage our communities at Women's Heritage Day at History Park in San José'!  The event runs from 12 p.m. to 4 p.m. on Saturday March 22- the shift is expanded to account for set-up and take down times. Here is the event description: 'We'r...

On March 22 the Authority will return to Máyyan 'Ooyákma and help remove invasive species before they spread to the sensitive serpentine habitat in the preserve. This project is in partnership with Advantest Corporation but it is open to any publi...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

TM Volunteer support request for Rancho Cañada del Oro OSP. As spring approaches and we prepare for the glory and the consequence, we seek trained TM support in and around the staging area of Rancho Cañada del Oro OSP. Power tools and hand tools w...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

This is a gentle walking program for people who are dealing with grief. 

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

TM Volunteer support request for Rancho Cañada del Oro OSP. As spring approaches and we prepare for the glory and the consequence, we seek trained TM support in and around the staging area of Rancho Cañada del Oro OSP. Power tools and hand tools w...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

We are seeking two volunteer Preserve Stewards each Wednesday, Thursday, Friday, Saturday and Sunday in spring to support operations at MOCR. These volunteers will provide public engagement support in the gateway property using the welcome booth, b...

We are seeking three volunteer Preserve Stewards each Wednesday, Thursday, and Friday in spring to support operations at MOCR. These volunteers will perform patrols in the Habitat Protection Zone starting at 10:30 a.m., 11:30 a.m., and 12:30 p.m. Pr...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...

Wildflower Season in Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve To help protect this sensitive and unique ecosystem, in March, April, and May the trails will be open by reservation ONLY on Saturdays and Sundays. During this time, the publ...