And for the final matchup of #VanishingWaterTowers for Round 1:
Cluthu/Mata Au vs Cayambe!

Learn about these two vastly different, but equally fascinating rivers below and don't forget to vote!!!
www.agu-h3s.org/rivercup

#RiverCup2026

For the next matchup of Round 1 in our #VanishingWaterTowers category:
Niwot Ridge vs Upper Penticton!

Learn more about these two research catchments below and keep those votes coming at www.agu-h3s.org/rivercup

#RiverCup2026

Round 1, Matchup 6 in our #VanishingWaterTowers category:
Rhône vs East River!

Keep on voting and learning facts in the replies below!
Tell your friends and colleagues, all are welcome to vote in #RiverCup2026!

Note: though we appreciate the enthusiasm, duplicate votes will be duly discarded 😉

CONGRATULATIONS to the first winners of #RiverCup2026: Lake Chad, Ganges-Brahmaputra, Colorado, and Murray-Darling are the #HydrologicalExtremes rivers advancing to round 2!

Voting is now LIVE for the next four matchups of round 1, #VanishingWaterTowers. Vote at www.agu-h3s.org/rivercup until 10/7!

There's #RiverCup2026, at least, and later on, keep an eye out about another Ore Cup!

And for our final matchup in the first round of #HydrologicalExtremes: Murray-Darling Basin vs Paraná River!

Learn some facts below and VOTE VOTE VOTE! Voting ends 10/5 and the results are close! www.agu-h3s.org/rivercup
#RiverCup2026

Rivers facing #HydrologicalExtremes, Round 1, Matchup 3:
Colorado River vs Reynolds Creek Experimental Watershed.

See some cool facts below and VOTE HERE until 10/5: www.agu-h3s.org/rivercup

#RiverCup2026

While you're voting for #RiverCup2026, don't forget to sign up for the next seminar in the Navigating Academic Waters series!
The next session will focus on helping early career hydrologists find federal jobs in a changing landscape. Registration link: www.cuahsi.org/cyberseminar...

Rivers facing #HydrologicalExtremes, Round 1, Matchup 2:
Amu Darya River vs Ganges-Brahmaputra Basin

See facts below!
VOTE HERE: www.agu-h3s.org/rivercup

#RiverCup2026

Rivers facing #HydrologicalExtremes, Round 1, Matchup 1:
Lake Chad Basin vs Zambezi River.

Check out facts below and VOTE HERE until 10/5: www.agu-h3s.org/rivercup

#RiverCup2026

It's the moment you've been waiting for: get excited for the return of #RiverCup2026, our annual March Madness-style bracket for global rivers! Follow along throughout the month of October to learn more about rivers experiencing different kinds of anthropogenic impacts and VOTE for your favorites!!!