us, and west of us.

"Over southwest, where you came over the Red Rock Pass, is the head of
the Missouri. On north of here is the Madison River; it comes in,
running northwest out of the upper corner of Yellowstone Park. We could
drive down there in a little while to the mouth of the West Fork, but I
think we can get better fishing somewhere else.

"If we went on, an hour or so, we would come to the mouth of the Madison
Canyon. Up toward the head of that is the big power dam--ninety feet
high it is--which cuts off the big Madison, and the South Fork, too.
That makes a lake that runs over back into the country. They say it is
seventy miles or so around the shore line, I don't know just how far.
That place is full of big fish, and when you catch it just right, there
is great sport there. I don't call it sport to fish for trout under that
big dam. They jump and jump there, day after day, until they wear
themselves out. There ought to be a ladder in that dam, but there
isn't."

"I suppose here is where the road comes down from Three Forks, over this
Raynold's Pass," said John, with pencil in hand, ready to continue his
own personal map of the country.

"No, not exactly," continued the young ranchman. "This road runs up to
Virginia City. They tell me that between there and Three Forks the roads
are hard to get over."

"But they come down here from Butte, don't they?" inquired Rob. "I
thought this was right on the Butte road."

"No, the best road to Butte comes in over Red Rock Pass just exactly
where you came in yourselves. Only it runs along to the north side of
the Centennial Valley and not on the south side, where you came in. They
have to follow up the Red Rock Valley to Dillon, where it comes in from
the north. That's the quickest and easiest way to get between Butte and
Henry's Lake. It is something over a hundred miles."

"Well, anyway," argued John, "this is the way Billy Williams will have
his car come in from Bozeman."

"No," smiled the young man, "you are wrong again on that. The Bozeman
road cannot come down the Gallatin, and through to here, south of the
Three Forks. When we come over to the edge of Yellowstone Park I will
show you how the road runs to Bozeman. It angles in north, to the east
of the South Fork of the Madison. Then it crosses the main river and
swings off to the northeast, and then north up to Bozeman, in the valley
of the Gallatin River."

"Well," said Rob, turning to his younger asso