529 USGS stream gauges. Click one for its flow now, and how that compares with the median for today across the station’s whole record — the number that says whether a river is low, normal or high for the date rather than just large or small.
Cut at dams, and at the midpoint between consecutive gauges so each gauge sits inside its own reach. Never across a regulation boundary, so a reach is never part open and part closed.
How each river fishes in the month on the date picker, for the species chosen above — from the research workbook.
The river’s standing quality for the species chosen above — from the research workbook.
How good a trout fishery each water is, rated by hand — not from the research workbook, which covers steelhead and salmon only.
A water we haven’t rated scores 1, which means unrated — not poor.
What is hatching in the month on the date picker.
Live discharge judged against each river’s own bands.
Only waters open to fishing on the selected date are shown.
Current conditions scoring is derived from Fishery Quality, temperature, flow, seasonal conditions (steelhead & salmon) and hatch activity (trout). For steelhead and salmon, two of those can veto the rest: a river that is off season or blown out scores 0 however well everything else reads.
Readings come straight from USGS when you click; nothing is stored. Reports and hatch timing come next.
When fish are in the river, and how it fishes — month by month. Pick a species, then a run.