The cabin stood in a little grove of pi?ons, about thirty yards back from the Cruzados river, facing south and sheltered on the north by a low hill. The grama grass grew right up to the doorstep, and the rabbits were running about and the grasshoppers hitting the door when we pulled up and looked at the place. There was no litter around, it was as clean as a prairie-dog’s house. No outbuildings, except a shed for our horses. The hillside behind was sandy and covered with tall clumps of deer-horn cactus, but there was nothing but grass to the south, with streaks of bright yellow rabbit-brush. Along the river the cottonwoods and quaking asps had already turned gold. Just across from us, overhanging us, indeed, stood the mesa, a pile of purple rock, all broken out with red sumach and yellow aspens up in the high crevices of the cliffs. From the cabin, night and day, you could hear the river, where it made a bend round the foot of the mesa and churned over the rocks. It was the sort of place a man would like to stay in forever.

I helped Rapp open the wooden shutters and sweep out the cabin. We put clean blankets on the bunks, and stowed away bacon and coffee and canned stuff on the shelves behind the cook-stove. I confess I looked forward to cooking on an iron stove with four holes. Rapp explained to me that Blake and I wouldn’t be able to enjoy all this luxury together for a time. He wanted the herd kept some distance to the north as long as the grass held out up there, and Roddy and I could take turn about, one camping near the cattle and one sleeping in a bed.

“There’s not pasture enough down here to take them through a long winter,” he said, “and it’s safest to keep them grazing up north while you can. Besides, if you bring them down here while the weather’s so warm, they get skittish, and that mesa over there makes trouble. The swim the river and bolt into the mesa, and that’s the last you ever see of them. We’ve lost a lot of critters that way. The mesa has been populated by run-aways from our herd, till now there’s a fine bunch of wild cattle up there. When the wind’s right, our cows over here get the scent of them and make a break for the river. You’ll have to watch ’em close when you bring ’em down.”

I asked him whether nobody had ever gone over to get the lost cattle out.

Rapp glared at me. “Out of that mesa? Nobody has ever got into it yet. The cliffs are like the base of a monument, all the way round. The only way in is through that deep canyon that opens on the water level, just where the river makes the bend. You can’t get in by that, because the river’s too deep to ford and too swift to swim. Oh, I suppose a horse could swim it, if cattle can, but I don’t want to be the man to try.”

I remarked that I had had my eye on the mesa all summer and meant to climb it.

“Not while you’re working for the Sitwell Company, you don’t! If you boys try any nonsense of that sort, I’ll fire you quick. You’d break your bones and lose the herd for us. You have to watch them close to keep them from going over, I tell you. If it wasn’t for that mesa, this would be the best winter range in all New Mexico.”

After the foreman left us, we settled down to easy living and fine weather; blue and gold days, and clear, frosty nights. We kept the cattle off to the north and east and alternated in taking charge of them. One man was with the herd while the other got his sleep and did the cooking at the cabin. The mesa was our only neighbour, and the closer we got to it, the more tantalizing it was. It was no longer a blue, featureless lump, as it had been from a distance. Its sky-line was like the profile of a big beast lying down; the head to the north, higher than the flanks around which the river curved. The north end we could easily believe impassable — sheer cliffs that fell from the summit to the plain, more than a thousand feet. But the south flank, just across the river from us, looked accessible by way of the deep canyon that split the bulk in two, from the top rim to the river, then wound back into the solid cube so that it was invisible at a distance, like a mouse track winding into a big cheese. This canyon didn’t break the solid outline of the mesa, and you had to be close to see that it was there at all. We faced the mesa on its shortest side; it was only about three miles long from north to south, but east and west it measured nearly twice that distance. Whether the top was wooded we couldn’t see — it was too............