The Creek and Its Watershed

Wolf Creek begins above Grass Valley, California, flows through the city, turns roughly south, and eventually joins the Bear River at Nevada County's southern border. The creek and its tributaries drain a significant portion of southwestern Nevada County. Wolf Creek has been neglected and under-appreciated in the past, but that has begun to change as Wolf Creek Community Alliance works to preserve and protect Wolf Creek and its watershed for the benefit of present and future generations.

View larger map

In the Current

COMING SOON!   WEBINAR: Building Community Resilience to Climate Change: A Wolf Creek Community Alliance Webinar Series. On Sept 9th and 16th, from 6:00-7:30 pm, Wolf Creek Community Alliance will present two free webinars addressing ways to we can respond to the immediate threats we face from climate change.
More Info & Registration Links >>

Wolf Creek Watershed Disturbance Inventory and Assessment of Conditions. Part 1 Abiotic & Part 2 Biotic describe the watershed in detail, provide a history of disturbances, and lay out the major threats facing it currently. The Wolf Creek Watershed Restoration Plan uses the first two documents and input from our stakeholders to prioritize restoration projects.

Idaho-Maryland Mine. Rise Gold is applying to re-open the Idaho-Maryland Mine. If they succeed and begin operations, impacts on Wolf Creek will be considerable. For up-to-date information, visit MineWatch.

COVID-19 Outbreak Notice. We continue to hold outdoor activities with recommended precautions. We work at safe distances from each other and wear masks when first meeting up. Tools are sanitized.

2020-2023 Strategic Plan. The board has developed a strategic plan document to guide our work for the next several years.

2021 Wolf Creek monitoring calendar. The water-quality monitoring days for 2021 are listed here for your convenient reference, along with information about becoming a monitor.

Support Wolf Creek Alliance at no cost! Every time you shop at SPD, 3% of your purchase amount can go to WCCA without any money coming out of your own pocket. FIND OUT HOW

Support WCCA's work in the watershed Click on the Donate button below and visit the Support Our Work page to learn about other ways of supporting our work.

iNaturalist observations. View observations from Wolf Creek naturalists on


Program Areas

  • Water quality monitoring
  • Ongoing community-based biological inventory
  • Ecological restoration
  • Stewardship

  • Creek-friendly landscaping
  • Watershed awareness
  • Creek-friendly development
  • Idaho-Maryland Mine project
  • Wolf Creek Parkway advocacy
  • Trails planning
  • Trail network connectivity