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 high above us; but the cliffs and canyon on the river side were fringed with beautiful growth, groves of quaking asps and piñons and a few dark cedars, perched up in the air like the hanging gardens of Babylon. At certain hours of the day, those cedars, growing so far up on the rocks, took on the bluish tint of the cliffs themselves.
It was light up there long before it was with us. When I got up at daybreak and went down to the river to get water, our camp would be cold and grey, but the