
thatRiver: River Conditions
Live gauges in plain words
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Free
Rating summary
About
thatRiver shows what a river is doing right now, in words you can act on.
Pick Fish or Float. Every river the Go Fish That River and Go Float That River sites cover gets the same rating the sites give: the live reading, how it compares with the river's normal range, and a plain-language verdict for today. Not a number you have to interpret, a sentence you can read in the parking lot.
ONE SCREEN PER RIVER
• The live gauge reading and the rating, refreshed every 15 minutes
• Seven days of history and the forecast, with the best day marked
• Weather, alerts, access points and tackle notes
• Community intel from people who were there
THE BOARD
• Today: every river in your state on one Go / No-Go board, per mode
• Rivers: sorted by condition or distance, with filters, score and best day
• The map: national dots, state gauges and community pins, with 3D terrain
READ THE WATER
Leave a report for the next person: what you saw, an access point, a pin, a photo. Reports are anonymous unless you add your name, and they're moderated. An outbox sends them when you're back in range.
WORKS WITHOUT A SIGNAL
Everything you've looked at is kept on the phone and stamped with when it was fetched, so river pages, the board and the map open with no service. Download map areas before you go.
Ratings describe the water, not your decision. Conditions change quickly; the reading is one input, and judgment on the bank is the rest.
Free, with no account.
WHERE THE DATA COMES FROM
These are the original public sources. Check them before you go:
• River flow and gauge history: U.S. Geological Survey, https://waterdata.usgs.gov
• River forecasts: NOAA National Water Prediction Service, https://water.noaa.gov
• Weather and alerts: National Weather Service, https://www.weather.gov
• Flood hazard zones: FEMA National Flood Hazard Layer, https://www.fema.gov/flood-maps/national-flood-hazard-layer
• Topographic map: USGS The National Map, https://apps.nationalmap.gov/viewer/
• Drought: U.S. Drought Monitor via NIDIS, https://www.drought.gov
• Periodical cicada broods: USDA Forest Service, https://data.fs.usda.gov/geodata/edw/datasets.php
• Fish stocking and public access: each state's fish and wildlife agency, named in the app wherever its data appears
Not a government app: thatRiver is an independent app made by Romans Twelve, Ltd. It is not affiliated with, endorsed by, or acting for the U.S. Geological Survey, NOAA, the National Weather Service, FEMA, or any federal, state or local government agency. It reads public government data, and every source is listed above.
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What's New in thatRiver
1.0.1
November 9, 2026
Fixes: links to the website's Privacy, Terms and other pages now open in Safari instead of a blank screen in the app, and rivers in several new states now load reliably when you open them one after another.
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