Dave Dierig, research leader at the National Center for Genetic Resources Preservation, stands among the ceiling-high shelves that hold the 600,000 seed packets in this cold storage vault. Grace Hood/KUNC hide caption

itoggle caption Grace Hood/KUNC

Heather Garris, a custodian of medical records, organizes patients' files at Colorado Springs Internal Medicine in Colorado Springs, Colo. Barry Gutierrez for NPR hide caption

itoggle caption Barry Gutierrez for NPR

The Black Forest wildfire is burning near Colorado Springs, Colo. As Thursday dawned it was "zero percent contained," authorities said. Chris Schneider/Getty Images hide caption

itoggle caption Chris Schneider/Getty Images

Colorado Governor John Hickenlooper, center, exits the Fort Lyon Correctional Facility in Las Animas, Colo., on Wednesday after touring the facility. Hickenlooper has proposed closing the facility due to budget concerns. Andy Cross/Denver Post via Getty Images hide caption

itoggle caption Andy Cross/Denver Post via Getty Images

Colorado Department of Corrections chief Tom Clements was shot and killed when he answered the front door at his home in Monument, Colo. Colorado Department of Corrections via AP hide caption

itoggle caption Colorado Department of Corrections via AP

Chris Colwell, director of emergency medicine at Denver Health, has treated victims from two of the deadliest mass shootings in the U.S. He says he's deeply disturbed by how easy it is to get guns. Barry Gutierrez/for NPR hide caption

itoggle caption Barry Gutierrez/for NPR

People at a Denver party early this month celebrate the recognition of an amendment to the Colorado constitution legalizing recreational use of marijuana. Brennan Linsley/AP hide caption

itoggle caption Brennan Linsley/AP