Rock can be heavy, which makes it awkward to work with. The irregularity of the surface is part of the attraction, but can make it difficult to line up when you want to follow a border.

She, along with Nancy McBride, will co-direct the variety show. “Rock the Border” will roll the audience through the decades with performances of a range of musical numbers from the fifties to ...

It has prompted the U.S. Border Patrol to install rock barriers to act as physical markers that separate the border between B.C. and Washington state. Border security experts say the tactic makes ...