Drought Threatens the Colorado River Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A bleached 'bathtub ring' visible on the rocky banks of Utah's Lake Powell on March 28, 2015. One of the biggest reservoirs of the Colorado River Basin, the lake is currently at 45% of capacity. ( Justin Sullivan / Getty ) Produced by Amber Hall Hosted by Todd Zwillich Produced by PRI and WNYC