BIG LOST RIVER AT HOWELL RANCH NR CHILLY ID

Steady over 24 hours (−2.3% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.

Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.

This gauge is on Big Lost River: regulations, guides and shops

USGS gauge page USGS statistics NWS gauge HWRI1

Checked Nov 5, 8:56 PM MST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.