So I slipped into the canyon by a side trail to keep watch.

Perhaps a quick walk on that side trail he had been meaning, to explore?

They followed him up the hillside for a hundred yards, then onto the side trail.

He took a side trail to his waiting car and drove off.

She, too, Richard knew, was relieved to be alone at last, if for only a brief ride up a side trail.

Thoughtfully James walked back a hundred yards to a little side trail which led off the road.

He continued down the side trail, watching for any treachery.

The men wouldn't know that the two of them had taken the side trail.

She was not going to let herself be led off down a side trail.

And there's a guard box over on the left, near a side trail.