Not only were they planning their routes, but they were critically examining a portion of the map that was encircled with a ring of red ink.

The space within the circle represented a tract of mountain land that belonged to Lieutenant Hippy Wingate, property that he had inherited.
Hippy had never seen this property, it having been left to him by a wealthy uncle whose large fortune Hippy had inherited while fighting the Germans in the air in France.

He now proposed to look it over.

In fact, this journey of the Overland Riders had been planned with that object in view.
Following their return from France, where they had served in the Overton College Unit, Grace having been an ambulance driver at the front, the girls had decided to seek recreation in the saddle each summer.

Their first vacation was spent in an exciting ride over the Old Apache Trail in Arizona, following this with a venturesome journey on horseback across the arid waste of the Great American Desert.