which we followed, reaching at last the edge where the cliff could be descended by way of a waggon-road the Mormons had cut out of the face for a mile and a quarter.  This was the Hurricane Ledge, which extends across the country northwards from the Uinkaret Mountains to the Virgen River.  Its course is well seen on the map opposite page 41, and also on the one on page 37.  As the traveller comes to Hurricane Hill, the northern limit, from which the whole cliff takes its name, he has before him one of the most extraordinary views in all that region, if not in the world.  Even the Grand Canyon itself is hardly more wonderful.  To the right and below us lay the fair green fields of Toquerville, on the opposite side of the Virgen, and all around was such a labyrinth of mountains, canyons, cliffs, hills, valleys, rocks, and ravines, as fairly to make one’s head swim.  I think that perhaps, of all the views I have seen in the West, this was one of the weirdest and wildest.  From Berry Spring in this valley a party of us returned to the Uinkaret district by following the country to the west of the Hurricane Ledge.  On this occasion we again climbed Mt.  Trumbull and some of the others of the group; and Dodds and I descended at the foot of the Toroweap to the river at the rapid called Lava Falls.  It was a difficult climb.

In triangulating I often had occasion to take the bearings of two large buttes lying to the north-west, and in order that my recorder could put down the readings so that I might identify them later I was obliged to give him titles for these.  They had no names in our language, and I did not know the native ones, so, remembering that at the foot of one I had found some ant-hills covered with beautiful diamond-like quartz crystals, I called it Diamond Butte, and the other, having a dark, weird, forbidding look, I named on the spur of the moment Solitaire Butte.  These names being used by the other members of the corps, they became fixtures and are now on all the maps.  I had no idea at that time of their becoming permanent.  This was also the case with a large butte on the east side of Marble Canyon, which I had occasion to sight to from the Kaibab.  It stood up so like a great altar, and, having in my mind the house-building Amerinds who had formerly occupied the country, and whom the Pai Utes called Shinumo, I called it Shinumo Altar, the name it now bears.  Probably there are people who wonder where the altar is from which it was named.  It was the appearance that suggested the title, not any archaeological find.  Once when we were in the Uinkaret country, Powell came in from a climb to the summit of what he named Mt.  Logan, and said he had just seen a fine mountain off to the south-west which he would name after me.  Of course I was much pleased at having my name thus perpetuated.  The mountain turned out to be the culminating point of the Shewits Plateau.  None of us visited it at that time, but Thompson went there later, and I crossed its slopes twice several years afterward.  On the summit is a circular ruin about twenty feet in diameter with walls remaining two feet high.