After the Colorado state legislature codified what e-bikes are and where they can go, many open space managers are deciding if e-bikes are right for them.
Zinke has made reorganizing the Interior — which manages 780,000 square miles of public lands, mostly in the West — a signature mission since taking over the agency.
The changes follow complaints from a bipartisan group of Western state governors that the secretary did not consult them.
The proposal would relocate many of the Interior Department's top decision-makers from Washington to still-undisclosed cities in the West.
Some Westerners have long argued federal land managers should be closer to the land they oversee.
The long-awaited change drew praise from Denver-based Western Energy Alliance, which sued to block the rules.
The Native American Rights Fund represents three of the five American Indian tribes suing President Trump over his proclamation to shrink the national monument.
In 2014, Bundy and his sons led an armed standoff against federal agents who came to enforce the law in Bunkerville, Nevada.
CU Boulder environmental historian Paul Sutter digs into the details of the Antiquities Act.
Journalist Jon Billman has covered all kinds of missing-in-the-wilderness stories, including Tennessee college student Joseph Lloyd Keller who vanished in Colorado in 2015.