Oregon
Toxic algae in Jackson County lakes
6 lakes and waterways in Jackson County have harmful algal bloom reports in Oregon's official data. The most recent entry is for Lost Creek Lake: Oregon issued a health advisory for Lost Creek Lake in 2025, listed on 1 July 2025. Lost Creek Lake has had blooms in three or more years.
Lakes with bloom history
Newest report first. Each lake has its own page with the full history and what the results mean.
Other waterbodies with a report
These have one or two reports in a single year, which isn't enough history for a page of their own yet.
- Emigrant Lake 2025
- Jackson Creek 2012
- Whetstone Pond 2010
- Willow Lake 2010
Source: Oregon Health Authority (OHA), official data, checked 24 October 2026. For today's conditions see the OHA current advisories page. No report doesn't mean a lake is safe: most water is only tested occasionally.