LAS VEGAS (AP) — The nation's top Interior Department official is heading a delegation of schoolchildren to a scenic national area outside Las Vegas on Wednesday to highlight a federal "Every Kid in a Park" campaign.

Interior Secretary Sally Jewell and the head of the White House Council on Environmental Quality, Christy Goldfuss, are scheduled to join 65 fourth-grade students from West Preparatory Academy at Red Rock Canyon National Conservation Area. Organizers say it's the first event of an Obama administration campaign to let fourth-graders nationwide use www.everykidinapark.gov to obtain free family passes to more than 2,000 federally managed lands and waters until next September.

Red Rock Canyon is about 20 miles outside Las Vegas. It's managed by the U.S. Bureau of Land Management, and draws more than 1 million visitors a year.