defaced a more than 60-year-old, hand-painted sign at Grand

Canyon National Park in the US were sentenced to probation and

banned from national parks for a year.

They had removed an extraneous apostrophe and added a comma to

the sign.

Jeff Deck and Benjamin Herson pleaded guilty for the damage

done earlier this year at the park’s Desert View

Watchtower.

The sign was made by Mary Elizabeth Jane Colter, the architect

who designed the rustic 1930s watchtower and other Grand

Canyon-area landmarks.

Deck and Herson, both 28, toured the US this spring, wiping out

errors on government and private signs.

The National Park Service learned of the vandalism from an

internet site operated by Deck on behalf of the Typo