The Collie Highway

Does anyone else have a Collie Highway in their backyard? Holly has worn a track along the perimeter of the yard, in her effort to keep security tight. A couple of times a day she will do her rounds along the highway to make sure the perimeter is secure before she retires to her watch tower (also known as the back deck). It is vital that she keeps a watchful eye on the property, and she is training Buddy to do the same. CONSTANT VIGILANCE!