Know the water.
Go prepared.
Explore rivers, lakes, gauges, access, tides, and whitewater across the United States. Check current conditions, plan a trip, and save the places that matter to you.
Create a free account to save places and choose useful condition emails.
Float Time Estimates
Pick two access points and get a trip duration estimate using current flow, distance, and wind.
15,000+ USGS Gauges
Live flow, stage, water temp, and flood risk — updated in real time from USGS and NOAA.
44,000+ Access Sites
Boat ramps, kayak launches, and river access points with coordinates and amenities.
Trusted Sources
Built on the best public water data in the US
How It Works
From segment to plan in seconds
Pick a Segment
Select your put-in and take-out access sites to lock in river miles.
See the Conditions
We combine gauges, wind, and tide data for a complete snapshot.
Plan Confidently
Get a float-time estimate with condition context for pacing and planning.
Explore Major Rivers
Discover America's great waterways
Tidal Gauges
Live tide stations with NOAA data
Whitewater Runs
River sections with rapid details
24-Hour Trends
See if water levels are rising, falling, or steady. Flow, stage, and temperature tracked over the last 24 hours.
Threshold Alerts
Set a water level and get an email when your river crosses it. No more guessing.
Morning Conditions Digest
Choose a daily or weekly email that summarizes saved places, highlights fresh readings, and clearly marks missing or stale data.
Built For People Who Check Conditions Before They Go
Fishing
Check flow, stage, and water temp on your river before driving out. See if levels are rising or falling and whether flood stage is a concern.
Paddling & Floating
Pick your put-in and take-out, see the distance, and get a float time estimate based on current flow and wind. Know what you're getting into.
Coastal & Tidal
Tide predictions, water temperature, and wave conditions for 3,400+ NOAA stations. Plan around the tides, not against them.
Know Before You Go
Create a free account to save favorite spots and get useful condition emails.
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