LAS VEGAS (AP) — A proposed interstate linking Las Vegas and Phoenix is still years and billions of dollars from reality, but the governors of Nevada and Arizona already have unveiled signs to mark their dream.

Arizona Gov. Jan Brewer, Nevada Gov. Brian Sandoval and Rep. Steven Horsford, D-Nev., met at the Hoover Dam on Friday to unveil signs that will be posted along the proposed Interstate 11. It was a symbolic effort meant to keep up momentum on the project, which is coming of age in an era of scarce highway funding.