Now, as the San Juan River flows toward Lake Powell, it rambles over a huge pancake of mud that’s 49 miles long, a mile wide in some places, and as much as 120 feet deep in the final reaches of ...

When the San Juan River flows out of the San Juan Mountains in Southwestern Colorado, it contributes 15% of Lake Powell’s water. But there’s a problem: The river carries a hefty 55% of the ...

When the San Juan River flows out of the San Juan Mountains in Southwestern Colorado, it contributes 15% of Lake Powell’s water. But there’s a problem.

When the San Juan River flows out of the San Juan Mountains in Southwestern Colorado, it contributes 15% of Lake Powell’s water. But there’s a problem.

When the San Juan River flows out of the San Juan Mountains in Southwestern Colorado, it contributes 15% of Lake Powell’s water. But there’s a problem.