Congratulations, Gila River! You made it! 🌵🦎✨️ #RiverCup2024

Yessss Gila River!!! ☀️🦎
#RiverCup2024

A 32-slot bracket with the title "River Cup 2024" above the AGU-H3S logo. On the top left, a desert floodplain is overlain by an 8-slot bracket with the title "#DryRivers" containing the following river names: Gila, Rio Loa, Owens, Murray, Finke, Wadi Degla, Tigris & Euphrates, and Amu Darya. On the bottom left, a large river with several tributaries is overlain by an 8-slot bracket with the title of "#BigRivers" that contains the following river names: Mississippi, Amazon, Ganges, Congo, Columbia, La Seine, Yangtze, and Niger. On the top right, a wide mountain floodplain river is overlain by an 8-slot bracket with the title "#RiverRivers" that contains the following river names: Mekong, Walla Walla, Hatchie, Ohio, Avon, Para, Paraguay, and Molopo. On the bottom right, an icy river floodplain is overlain by an 8-slot bracket with the title "#FrozenRivers" and the following river names: Yukon, Mackenzie, Lena, Kuparuk, Neretva, Onyx, Yenisey, and Olfusa. In the center, there is a trophy

Drumroll, please! It’s time to announce our winner of #RiverCup2024

After 32 wonderful rivers battled head to head, the title of the 2024 Earth’s Most Remarkable River goes to:

The Gila River!

A big win for #DryRivers everywhere 🏆

& a huge thanks to all who got involved and voted this year!

#RiverCup2024
Voting Yukon because the godwits from Aotearoa breed on the delta 🪺💚

THIS IS IT FOLKS. THE FINAL MATCH UP. A BATTLE TO BE REMEMBERED FOR CENTURIES. #DryRivers vs #FrozenRivers. Both are ecologically important but only one can be the champion. #RiverCup2024

River Cup | Agu H3s

Make your case for the river you think should be crowned the World’s Most Remarkable below, and head to www.agu-h3s.org/rivercup to cast your vote for your favorite!

And come back here tomorrow, 10/31 for the results of the #RiverCup2024!

A picture of the Gila River (USA), with a wide channel flowing through a rocky valley with some riparian woody vegetation and scrubby hillslopes.

The Yukon River as a wide, brown river flowing through a large valley with steep mountain slopes on the left side and a green flat floodplain on the right. Taller mountains rise up in the background

#RiverCup2024 Match 31

☀️Gila River: A historic Wilderness Area, the headwaters of the Gila support endangered species and thousands of years of human history alike

🏔️Yukon River: The Yukon delta is a National Wildlife Refuge known for waterbirds, marine mammals, and significant salmon runs

Vote Yukon and be large and uncontrolled! #RiverCup2024

River Cup | Agu H3s

Make your case for one of these hard-hitting rivers below, and head to www.agu-h3s.org/rivercup to cast your vote for your favorite!

And come back here tomorrow, 10/30 for the FINAL ROUND of the #RiverCup2024!

The Mekong River delta as it flows into the sea, with many meandering and braided channels surrounded by flat farmland and mountains rising up from the ocean in the background

The Yukon River as a wide, brown river flowing through a large valley with steep mountain slopes on the left side and a green flat floodplain on the right. Taller mountains rise up in the background

#RiverCup2024 Match 30

💧Mekong River: With >1300 fish species, the Mekong is the world’s most productive inland fishery & provides 80% of local animal protein

🏔️Yukon River: The Yukon only has one hydroelectric dam, making it one of the world's “last great uncontrolled rivers”

A 32-slot bracket with the title "River Cup 2024" above the AGU-H3S logo. On the top left, a desert floodplain is overlain by an 8-slot bracket with the title "#DryRivers" containing the following river names: Gila, Rio Loa, Owens, Murray, Finke, Wadi Degla, Tigris & Euphrates, and Amu Darya. On the bottom left, a large river with several tributaries is overlain by an 8-slot bracket with the title of "#BigRivers" that contains the following river names: Mississippi, Amazon, Ganges, Congo, Columbia, La Seine, Yangtze, and Niger. On the top right, a wide mountain floodplain river is overlain by an 8-slot bracket with the title "#RiverRivers" that contains the following river names: Mekong, Walla Walla, Hatchie, Ohio, Avon, Para, Paraguay, and Molopo. On the bottom right, an icy river floodplain is overlain by an 8-slot bracket with the title "#FrozenRivers" and the following river names: Yukon, Mackenzie, Lena, Kuparuk, Neretva, Onyx, Yenisey, and Olfusa. In the center, there is a trophy

It’s time for the last semifinal of #RiverCup2024! Our #RiverRivers champion faces off against our #FrozenRivers champion, and only one will make it to the final tomorrow!

See some fun facts about the Mekong and Yukon rivers below, and vote for your favorite at www.agu-h3s.org/rivercup

River Cup | Agu H3s

Make your case for one of these hard-hitting rivers below, and head to agu-h3s.org/rivercup to cast your vote for your favorite!

And come back here tomorrow, 10/29 for the second half of the semifinals of #RiverCup2024: the Mekong vs Yukon

A picture of the Gila River (USA), with a wide channel flowing through a rocky valley with some riparian woody vegetation and scrubby hillslopes.

A picture of the Gila River (USA), with a wide channel flowing through a rocky valley with some riparian woody vegetation and scrubby hillslopes.

#RiverCup2024 Match 28

☀️Gila River: After a century of Akimel O’othham fighting for Gila water rights, the tribe was awarded the largest share of the Colorado in 2004

🏔️Columbia River: The Columbia is the largest river by discharge flowing from the Americas into the Pacific

A 32-slot bracket with the title "River Cup 2024" above the AGU-H3S logo. On the top left, a desert floodplain is overlain by an 8-slot bracket with the title "#DryRivers" containing the following river names: Gila, Rio Loa, Owens, Murray, Finke, Wadi Degla, Tigris & Euphrates, and Amu Darya. On the bottom left, a large river with several tributaries is overlain by an 8-slot bracket with the title of "#BigRivers" that contains the following river names: Mississippi, Amazon, Ganges, Congo, Columbia, La Seine, Yangtze, and Niger. On the top right, a wide mountain floodplain river is overlain by an 8-slot bracket with the title "#RiverRivers" that contains the following river names: Mekong, Walla Walla, Hatchie, Ohio, Avon, Para, Paraguay, and Molopo. On the bottom right, an icy river floodplain is overlain by an 8-slot bracket with the title "#FrozenRivers" and the following river names: Yukon, Mackenzie, Lena, Kuparuk, Neretva, Onyx, Yenisey, and Olfusa. In the center, there is a trophy

It’s time for the first semifinal of the #RiverCup2024! Our #BigRivers champion faces off against our #DryRivers champion, and only one will make it to the final!

See some fun facts about the Gila and Columbia rivers, and vote for your favorite at agu-h3s.org/rivercup

Gila vs. Columbia? Don't make me choose between those! #RiverCup2024

A 32-slot bracket with the title "River Cup 2024" above the AGU-H3S logo. On the top left, a desert floodplain is overlain by an 8-slot bracket with the title "#DryRivers" containing the following river names: Gila, Rio Loa, Owens, Murray, Finke, Wadi Degla, Tigris & Euphrates, and Amu Darya. On the bottom left, a large river with several tributaries is overlain by an 8-slot bracket with the title of "#BigRivers" that contains the following river names: Mississippi, Amazon, Ganges, Congo, Columbia, La Seine, Yangtze, and Niger. On the top right, a wide mountain floodplain river is overlain by an 8-slot bracket with the title "#RiverRivers" that contains the following river names: Mekong, Walla Walla, Hatchie, Ohio, Avon, Para, Paraguay, and Molopo. On the bottom right, an icy river floodplain is overlain by an 8-slot bracket with the title "#FrozenRivers" and the following river names: Yukon, Mackenzie, Lena, Kuparuk, Neretva, Onyx, Yenisey, and Olfusa. In the center, there is a trophy

The results of Round 3 of #RiverCup2024 are in, and we have our final four rivers moving on to Round 4!

How are your favorites faring? Get ready to keep voting for Earth’s Most Remarkable River, and come back on Monday, 10/28 to vote in our first semifinal: Gila vs Columbia

River Cup | Agu H3s

Make your case for one of these #FrozenRivers below, and head to www.agu-h3s.org/rivercup to cast your vote for your favorite!

And come back here tomorrow, 10/25 for the Round 3 results, as well as a sneak peak of our first semifinals of #RiverCup2024

The Yukon River as a wide, brown river flowing through a large valley with steep mountain slopes on the left side and a green flat floodplain on the right. Taller mountains rise up in the background

The Onyx river flowing across an expansive, flat glacier. The clear, bright blue river has cut through the craggy top of the glacier, with steep mountains far in the distance in the background

#RiverCup2024 Match 28

🏔️Yukon River: The Yukon hosts some of the world’s longest salmon runs, as well as dense populations of Peregrine falcons

🧊Onyx River: Despite the harsh conditions, the Onyx hosts diverse communities of microbial and microscopic life like nematodes, tardigrades, and algae

A 32-slot bracket with the title "River Cup 2024" above the AGU-H3S logo. On the top left, a desert floodplain is overlain by an 8-slot bracket with the title "#DryRivers" containing the following river names: Gila, Rio Loa, Owens, Murray, Finke, Wadi Degla, Tigris & Euphrates, and Amu Darya. On the bottom left, a large river with several tributaries is overlain by an 8-slot bracket with the title of "#BigRivers" that contains the following river names: Mississippi, Amazon, Ganges, Congo, Columbia, La Seine, Yangtze, and Niger. On the top right, a wide mountain floodplain river is overlain by an 8-slot bracket with the title "#RiverRivers" that contains the following river names: Mekong, Walla Walla, Hatchie, Ohio, Avon, Para, Paraguay, and Molopo. On the bottom right, an icy river floodplain is overlain by an 8-slot bracket with the title "#FrozenRivers" and the following river names: Yukon, Mackenzie, Lena, Kuparuk, Neretva, Onyx, Yenisey, and Olfusa. In the center, there is a trophy

I said BRR it’s cold in here, there must be some #FrozenRivers in the atmosphere ❄️ It’s time to see which of our coldest rivers will come out on top for #RiverCup2024!

Learn about unique flora & fauna of the Yukon and Onyx rivers, and vote for your favorite at www.agu-h3s.org/rivercup

River Cup | Agu H3s

Make your case for one of these #BigRivers below, and head to www.agu-h3s.org/rivercup to cast your votes for your favorite!

And come back here tomorrow, 10/24 for the last regional matchup: the #FrozenRivers of #RiverCup2024: the Yukon vs the Onyx

an aerial picture of the Amazon River (Brazil) winding through a large, green floodplain filled with wetland vegetation

The Columbia River (US) flowing through a valley between two rocky ridges, with forest in the foreground and pasture in the background

#RiverCup2024 Match 27

🐠Amazon River: The Amazon is home to the Dorado catfish, which can grow over 6 feet long

🐟Columbia River: Before dams were built on the Columbia, it was estimated that 8 to 16 million salmon migrated using the river annually

A 32-slot bracket with the title "River Cup 2024" above the AGU-H3S logo. On the top left, a desert floodplain is overlain by an 8-slot bracket with the title "#DryRivers" containing the following river names: Gila, Rio Loa, Owens, Murray, Finke, Wadi Degla, Tigris & Euphrates, and Amu Darya. On the bottom left, a large river with several tributaries is overlain by an 8-slot bracket with the title of "#BigRivers" that contains the following river names: Mississippi, Amazon, Ganges, Congo, Columbia, La Seine, Yangtze, and Niger. On the top right, a wide mountain floodplain river is overlain by an 8-slot bracket with the title "#RiverRivers" that contains the following river names: Mekong, Walla Walla, Hatchie, Ohio, Avon, Para, Paraguay, and Molopo. On the bottom right, an icy river floodplain is overlain by an 8-slot bracket with the title "#FrozenRivers" and the following river names: Yukon, Mackenzie, Lena, Kuparuk, Neretva, Onyx, Yenisey, and Olfusa. In the center, there is a trophy

These rivers are in their Rep Era 🐍 It’s time to find out which #BigRivers have the biggest reputation in #RiverCup2024!

Learn about unique flora & fauna of the Amazon and Columbia rivers, and vote for your favorite at www.agu-h3s.org/rivercup

#RiverCup2024 is heating up! It's the final #DryRiver showdown!
I'm rooting for the Gila River sharing a name with the Gila Monster 🦎

#RiverCup2024 Match 26

🐸 The Gila river is a refugia for threatened and endangered species including Chiricahua Leopard Frogs

🐢 The Euphrates softshelled turtle lives in both the Euphrates and Tigris but is endangered due to habitat fragmentation

It must be getting hot in here because it's the final battle for #DryRivers in #RiverCup2024!
Learn about the unique flora and fauna of the Gila and Tigris & Euphrates Rivers and vote for your favorite at agu-h3s.org/rivercup

River Cup | Agu H3s

Make your case for one of these #RiverRivers below, and head to agu-h3s.org/rivercup to cast your vote for your favorite!

And come back here tomorrow, 10/22 for the next regional matchup: the #DryRivers of #RiverCup2024: the Gila vs the Tigris & Euphrates

The Mekong River delta as it flows into the sea, with many meandering and braided channels surrounded by flat farmland and mountains rising up from the ocean in the background

An aerial view of the Paraguay river, a large turbid river meandering through a wide green valley, with many oxbows and side channels.

#RiverCup2024 Match 25

💧Mekong River: The Mekong is home to many giant freshwater species like stingrays, turtles, & catfish

🌎Paraguay River: Part of the Pantanal ecosystem, the Paraguay supports high densities of crocodiles, jaguars, and the world’s largest parrot

A 32-slot bracket with the title "River Cup 2024" above the AGU-H3S logo. On the top left, a desert floodplain is overlain by an 8-slot bracket with the title "#DryRivers" containing the following river names: Gila, Rio Loa, Owens, Murray, Finke, Wadi Degla, Tigris & Euphrates, and Amu Darya. On the bottom left, a large river with several tributaries is overlain by an 8-slot bracket with the title of "#BigRivers" that contains the following river names: Mississippi, Amazon, Ganges, Congo, Columbia, La Seine, Yangtze, and Niger. On the top right, a wide mountain floodplain river is overlain by an 8-slot bracket with the title "#RiverRivers" that contains the following river names: Mekong, Walla Walla, Hatchie, Ohio, Avon, Para, Paraguay, and Molopo. On the bottom right, an icy river floodplain is overlain by an 8-slot bracket with the title "#FrozenRivers" and the following river names: Yukon, Mackenzie, Lena, Kuparuk, Neretva, Onyx, Yenisey, and Olfusa. In the center, there is a trophy

It’s time for Round 3 of #RiverCup2024, and we have our first regional championship: the #RiverRivers!

Learn about unique flora & fauna of the Mekong and Paraguay rivers, and vote for your favorites at agu-h3s.org/rivercup

A 32-slot bracket with the title "River Cup 2024" above the AGU-H3S logo. On the top left, a desert floodplain is overlain by an 8-slot bracket with the title "#DryRivers" containing the following river names: Gila, Rio Loa, Owens, Murray, Finke, Wadi Degla, Tigris & Euphrates, and Amu Darya. On the bottom left, a large river with several tributaries is overlain by an 8-slot bracket with the title of "#BigRivers" that contains the following river names: Mississippi, Amazon, Ganges, Congo, Columbia, La Seine, Yangtze, and Niger. On the top right, a wide mountain floodplain river is overlain by an 8-slot bracket with the title "#RiverRivers" that contains the following river names: Mekong, Walla Walla, Hatchie, Ohio, Avon, Para, Paraguay, and Molopo. On the bottom right, an icy river floodplain is overlain by an 8-slot bracket with the title "#FrozenRivers" and the following river names: Yukon, Mackenzie, Lena, Kuparuk, Neretva, Onyx, Yenisey, and Olfusa. In the center, there is a trophy

The results of Round 2 of #RiverCup2024 are in, and we have our elite eight rivers that are moving on to Round 3: the regional finals!

Get ready to keep voting for Earth’s Most Remarkable River, and come back on Monday, 10/21 for our first regional matchup: the #RiverRivers, Mekong vs Paraguay!

It’s the last chance to vote for the #DryRivers and #FrozenRivers in #RiverCup2024! Head to www.agu-h3s.org/rivercup to vote for these matchups:

💧Gila vs Murray☀️
🌦️Finke vs Tigris & Euphrates🌍
🌊Yukon vs Lena🏔️
🧊Onyx vs Ölfusá❄️

Results of Round 2 will be posted at 6pmET!