Data source · U.S. Geological Survey

USGS Water Data APIs

Open OGC API product family for USGS continuous sensor measurements, daily values, time-series metadata, and monitoring-location metadata. Continuous and daily observations carry site and series identifiers, parameter/s…

FreeAPINationalUnited States

What it answers ↓

1Questions answered

3Fields delivered

1Country

Questions this answers

1 · best fit first

QuestionPrimary fit

River stage and discharge during the event

USGS Water Data APIs provide standing public continuous and daily gauge measurements keyed to stable monitoring-location and time-series identifiers. Parameter 00060 is discharge in cubic feet per second and 00065 is gage height in feet; records carry observation time or date, value, unit, statistic, approval status, qualifier, and last-modified time, while monitoring-location metadata and GeoJSON geometry pin the gauge. Point-gauge measurements do not establish flood occurrence, inundation extent, parcel depth, or conditions away from the gauge.

Fields it delivers

3 fields

Event start datetime Hydrologic observation value Monitoring location altitude

CoverageNational

USGS Water Data APIs expose U.S. monitoring locations and observations; selective site coverage does not change the national footprint.

Access & termsFree

The cited publisher route provides the data through a direct public download, API, or lookup without a subscription, order, membership, or per-use payment. Commercial services may repackage the data, but they are not required to access this source.

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