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North Fork South Platte River below Geneva Creek, at Grant

River gage · NORGENCO · USGS 06706000 · Division 1 · Water District 80 · Park County

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

Source DWR administrative record · verify at DWR station ↗ Source Independent agency measurement · verify at USGS ↗ Source Our computation, no independent reference · computed here from the screened record

The record

Period of record
1909-01-01 → 1998-09-30
Daily values
28,396
Latest cached reading
52.0 cfs (1998-09-30)
Trend
increasing, 12.23 cfs/decade (11.5% of median)
Pettitt changepoint
~1974

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

Chart: annual mean flow at North Fork South Platte River below Geneva Creek, at Grant, water years 1909 to 1998. The measured record is increasing at 12.23 cubic feet per second per decade. A Pettitt changepoint is detected around 1974. The underlying yearly values are available as a CSV download linked at the top of this page.

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Where it sits

Location as DWR records it (5.0).

Provenance

DWR station abbreviation NORGENCO; recorded station name “NF SOUTH PLATTE R BELOW GENEVA C, AT GRANT, 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.