YELLOWSTONE NATIONAL PARK, Wyo. (AP) Vice President Mike Pence used a visit to Yellowstone National Park to promote a plan to whittle away the more than $12 billion repair-and-maintenance backlog in parks across the U.S.

Pence spoke Thursday at Old Faithful, the first national park's most famous geyser, in an appearance with Interior Secretary David Bernhardt.

The Billings Gazette reports Pence helped haul and nail lumber with a work crew repairing a boardwalk near the geyser. He spoke about the Trump administration's proposal to commit half of all leasing royalties on federal land to the backlog of needed repairs for roads, trails and buildings.

The measure to use money from energy leases is in the Interior Department's budget request after failing to pass Congress last year. Pence calls it an idea whose time has come.