Hydrohistorian

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Rio Grande at Colorado-New Mexico State Line

River gage · RIOBORCO · USGS 08252000 · Division 3 · Water District 24 · Costilla County

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

The record

Period of record
1953-10-01 → 1982-09-30
Daily values
10,592
Latest cached reading
820.0 cfs (1982-09-30)
Trend
no trend, 67.57 cfs/decade (24.2% 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

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Where it sits

Location as DWR records it (5.0).

Provenance

DWR station abbreviation RIOBORCO; recorded station name “RIO GRANDE AT COLORADO-NEW MEXICO STATE LINE”; 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.