The proposed route calls for a north-south line between Fort Collins and Vail, and an east-west route extending through downtown Denver and Vail.

Track near Las Vegas includes $50 million from Dubai, where the first operating system could be built by 2021, the developer says.

The first public demonstration of “the hyperloop,” a new propulsion system for high-speed transit, occurred on May 11 in the desert north of Las Vegas. Days later, a team of researchers unveiled a hyperloop test pod.