Emery felt sure that camp was upstream.  So upstream we went, keeping back of the bushes that fringed the banks, carefully searching for a sign.  After a few minutes’ hunt we heard a sound:  a subdued rumble, not unlike the distant thunder heard that afternoon, or of boats being dragged over the pebbles.  What could it be?  We listened again, carefully this time, and discovered that it came from a point about thirty feet away, on the opposite side of the bushes.  It could be only one thing.  Jimmy’s snore had brought us home!

Hurriedly securing some dry clothes from the rubber sacks, which contained our sleeping-bags as well, we made a quick change, and slid into the beds, inflating the air mattresses with our lungs after we were inside.  Then we lay down contentedly to rest.

CHAPTER III

THE GATEWAY OF ALL THE CANYONS

We awoke the next morning full of anticipation.  Something new lay ahead of us, a promise of variety.  In plain sight of our camp lay the entrance to Flaming Gorge, the gateway to the entire series of canyons.  Hurriedly finishing our camp duties, we loaded the boats, fastened down the hatches, and shoved off into the current, eager to be on our way.

It was cloudy overhead and looked as if we were to have more rain.  Even then it must have been raining away to the north, for a dirty, clay-colored torrent rushed through the dry arroyo of the night before, a stream large enough to discolour the water of the Green itself.  But we thought little of this.  We were used to seeing muddy water in the Colorado’s gorges; in fact we were surprised to find clear water at all, even in the Green River.  Rowing downstream we found that the country sloped gently towards the mountains.  The river skirted the edge of these foot-hills as if looking for a possible escape, then turned and entered the mountain at a sharp angle.  The walls sloped back considerably at first, and there was a little shore on either side.

Somewhere near this point runs the dividing line of Wyoming and Utah.

We considered the gateway a subject worthy of a motion picture, if taken from the deck of the boat; but doubted if it would be a success owing to the condition of the light and the motion of the boat.  Still it was considered worthy of a trial, and the film was run through.

The colour of the rocks at the entrance was a light red, but not out of the ordinary in brilliancy.  The rock formation was stratified, but displaced; standing at an angle and flexed over on top with a ragged break here and there, showing plainly the great pressure to which the rocks had been subjected.  The upheaval was not violent, the scientists tell us, but slow and even, allowing the river to maintain its old channel, sawing its way through the sandstone.  The broken canyon walls, when well inside the gorge, were about 600 to 700 feet high.  The mountains