"Yes, I have heard it is about fifty miles north of the Gila."

"Well, that would make this spot marked from fifteen to twenty miles
from them. The length of the map would be about two hundred miles, and
as the peaks are about a quarter of the distance from the right-hand
side, this map begins about a hundred and fifty miles to the west of the
peaks. I should think it would be at some well-known place that the
maker of this map began; some place that he knew he could find again
without difficulty."

"That is so; you will see the line begins at a stream running north and
south. There is a mark here each side of the path-line. Of course they
might mean anything; they might mean trees or rocks. Then look here;
there are two more dots out here, and if you were to draw a line
straight through them, it would come to the other dots. One must be
three or four miles off, and the other twelve or fifteen. The farthest
one may be a peak, and the one nearer some conspicuous tree or rock in a
line with it."

"Yes, that is what we make it out to be," Boston Joe said. "We have the
choice of either going up the Gila valley and mounting this side stream
till we come upon something that agrees with these four marks, or of
keeping along from the west by a valley about the right distance from
the Gila."

"I should not think we can trust much to distances," Dick said; "this
man was merely sketching out a plan to help him on his way up again,
should he ever make up a party to return to the mine, and, though
probably these bendings and turnings of the road are to be depended
upon, the map itself cannot be done to any scale. Here the peaks are