Hydrohistorian

← Basin trends

Lake Fork San Miguel Rv above Trout Lake near Ophir

River gage · LFSANOCO · USGS 09171240 · Division 4 · Water District 60 · San Miguel County

Live gage at DWR ↗ · USGS monitoring location ↗ · Download daily record (CSV)

The record

Period of record
2011-11-01 → 2026-07-06
Daily values
5,327
Latest cached reading
9.2 cfs (2026-07-06)
Trend
no trend, -3.3 cfs/decade (-22.1% of median)

Readings come from the weekly-refreshed cache, never fetched live — the date beside the value says exactly how fresh it is. The live gage is one click up.

Annual flow & trend

Loading chart…

Where it sits

Location as DWR records it (5).

Provenance

DWR station abbreviation LFSANOCO; recorded station name “LAKE FORK SAN MIGUEL RV ABV TROUT LAKE NR OPHIR CO”; operated by USGS. Daily flows from the DWR HydroBase snapshot plus CDSS REST updates, refreshed on the weekly cycle. Trend statistics are Mann-Kendall (Hamed-Rao corrected) with Sen's slope in native cfs, the same numbers as the basin Trends tab.