Agate Reservoir
PrecautionPrecaution issued due to cyanobacteria detection and visible bloom (see image below).
Cyanobacteria (harmful algal bloom) health advisories for the lakes and reservoirs a Rogue-area angler is likely to fish, filtered from the Oregon Health Authority advisory dataset. The mainstem Rogue is rarely listed; the stillwaters are what to watch in summer.
Fishing is usually still allowed — avoid visible scum, keep pets and kids out of it, and skin and gut fish before eating.
Precaution issued due to cyanobacteria detection and visible bloom (see image below).
Precaution issued due to visible bloom (see image below).
Precaution issued due to visible bloom (see image below).
Precaution issued due to visible bloom (see image below).
Initial precaution was issued 5/22 due to visible bloom. Non-detect again confirmed on 6/30.
Sampled and below the health threshold as of the issue date. Conditions still change — use your eyes.
Source: Oregon Health Authority harmful algae bloom advisories, checked Sep 7, 2026 8:17 PM. OHA is the issuing authority — this is a filtered view for Rogue basin waters, not a substitute for checking OHA before you go. Advisories can be issued or lifted between our checks.
