COLLECTION MAP

Explore the world’s rivers through our curated collection of river water samples, made possible by a global network of contributors. Each point on the map indicates a collection site. Click on a marker to learn the name of the contributor associated with that river.

  • The numerical sequence approximately reflects the order in which water from each river were collected, with the Mekong River being the initial one.

  • Black markers represent rivers that have been collected or are planned for collection but have not yet been officially added to the collection.

  • Brown markers indicate waterways that may be considered “rivers” by some but are actually manmade canals or water bodies such as straights, subterranean waterways, etc. While they are not officially part of the collection, they are significant for their impact on human culture.

  • Green markers represent two rivers collected at their confluence point.

  • Grey markers represent rivers collected twice, for example, lower and upper sections or in the case of transboundary rivers, different countries.
More from River Mixer

'Buy' the River Blog
News

Spain Flood Update: Duero (Douro) and Arandilla Rivers Levels Rising in Aranda de Duero, Soria, and San Esteban de Gormaz

Current monitoring shows water levels nearing bank-full at the Puente Mayor and local riverside promenades as of February 16, 2026. Residents across Northern Spain are bracing for further surges as the saturated basin of the Duero struggles to contain the runoff from recent relentless winter storms—but just how high will the crest reach before the weekend?

Read More »
February 16, 2026
Travel

10 Things to Know About “Kentucky River Tours”: Inside the Operation

Husband-and-wife owners Nathan and Allison Depenbrock of Kentucky River Tours and Canoe Kentucky are USCG-certified Captains and lifelong river enthusiasts. Together, they have spent decades navigating the Kentucky River and Elkhorn Creek. They are specialists in river navigation and outdoor education, ensuring every tour is safe, honest, and authentically Kentucky.

Read More »
February 16, 2026
News

Portugal Flood Update: Mondego River Levels Rising in Coimbra, Montemor-o-Velho

Current monitoring shows water levels nearing bank-full at the Casais Bridge as of February 11, 2026. The sudden breach of a primary protective dyke has transformed local agricultural fields into an inland sea, cutting off the nation’s most vital transport artery and leaving residents wondering if the century-old flood defenses can withstand the next 24 hours.

Read More »
February 12, 2026

Buy Rivers