Citizen Science Tahoe

Protect Lake Tahoe while you play

Despite its stunning beauty, Lake Tahoe is threatened – by aquatic invasive species, litter, stormwater pollution and climate change. To Keep Tahoe Blue, the League and our partners rely on science to understand and combat these threats. And that’s where you come in.

While you enjoy Tahoe’s beaches, blue waters or soaring mountains, report what you see – both the good and the bad – using the Citizen Science Tahoe website. With online platforms, citizen scientist volunteers can collect and share important data about their surrounding environment. You can help researchers by taking a few minutes to report what you see around the Lake, whether it’s an algal bloom, cloudy water, invasive species or litter on the beach.

Every report makes a difference. Get started today.

Scroll down to see what you can report through the Citizen Science Tahoe website.
  • Eyes on the Lake
    Eyes on the Lake
    Report aquatic invasive species and help prevent their spread to other parts of the lake.
  • That's Not Natural
    That's Not Natural
    Report litter, graffiti, and other human impacts around the Tahoe Basin.
  • Algae Watch
    Algae Watch
    Record algae sightings to help scientists understand their causes and develop mitigation strategies.
  • Water Quality
    Water Quality
    Share visual observations to help monitor water quality around the lake.
  • Project Ashfall
    Project Ashfall
    Track wildfire ash and help scientists demystify fire weather.
  • Mountain Rain or Snow?
    Mountain Rain or Snow?
    Share precipitation observations that help scientists better predict the rain-to-snow transition in mountainous areas

Start sharing your observations today to help protect Lake Tahoe