BRECKENRIDGE, Colo. (AP) _ A sheriff who promised to have deputies take into custody anyone caught skiing out of bounds made good his vow with the arrest of a 21-year-old man.

Robert Andrew Falkner, 21, of Patchogue, N.Y., was caught Wednesday snowboarding in an out-of-bounds area at Copper Mountain's Union Peak, said Officer Ron Milhorn, a spokesman for the Summit County sheriff's department.

A snowboard is similar to a skateboard, except without wheels.

Sheriff's deputies made the arrest after the resort's ski patrol contacted them, Milhorn said.

Falkner was booked into the Summit County jail and charged with skiing in a closed area, Milhorn said. He appeared before Summit County Judge David Lass, where he pleaded guilty and was fined the maximum $300, the spokesman said.

Sheriff Delbert Ewoldt issued the order to arrest out-of-bound skiers this week and said the action was necessary to prevent more deaths from avalanches.

Avalanches have killed five cross-country skiers so far this season. Last season 11 skiers were killed, including six in Summit County.