As the West struggles with drought and an increasing demand for water, one river stands outs - the Rio Grande.
The river has been endangered for years, and attempts to rescue it are often stymied by lack of information.
One man hopes to change that.
He's in the middle of a seven month long journey down what's left of the Rio Grande.
And he hopes the information he gathers will spur action to save the river that provides water to millions in the U.S. and Mexico.