H.R. 4596 wants to give more money and support to help save special fish that are in danger in parts of the Colorado and San Juan Rivers. It also lets different people and groups, even those who aren't the government, help out too with money or land.

H.R. 4596 is a plan to help save endangered fish in some rivers by giving the government and others a chance to work together and share money to keep the fish safe until 2031. They will also keep an eye on how much things cost and adjust the money they spend to make sure they can still get the job done.

The bill aims to help rare fish in parts of the Colorado and San Juan Rivers by giving money to programs that protect them. It says the government and others can share the costs, and it plans to keep this funding going until 2031, even including adjustments for inflation to cover rising costs.