About
Riveryas is an atlas of the world's rivers, built entirely on open scientific data.
For each river you will find its course from source to mouth, the journey with the towns, bridges, dams and tributaries on the way, the water month by month, the basin in numbers, the source and the mouth seen from space, and what our other atlases know about its banks.
Everything is an average or a count from a public dataset — never a forecast, and never an opinion. Sources and licences are on the data sources page.
Who publishes this site and how to reach us: Contact.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.
beaches
Find your beach: sea temperature, sun and swimming month by month.Visit 
lakes
Every lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit 
mountains
Every summit in 3D: summit weather, the 0 °C line, huts and trails.Visit 
waterfalls
Every waterfall: height, flow month by month and when it roars.Coming soonVisit 
islands
Every island from the sea up: size, sea temperature, ferries and 3D.Coming soonVisit 
rivers
Every river from source to sea: the journey, the flow and the basin in numbers.You are here
canyons
Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit