The talus shuts off the view, and it seems impossible that there can be such great precipice walls as the opposite mural face reveals. It is not as high, however, on this side as it is on the other, by fully one thousand six hundred and fifty feet. The difference is caused by the great upthrust in the earth's crust, which detached Powell's Plateau from the Kaibab Plateau.
Bass Tomb or Holy Grail Temple. The great north wall is not featureless.
There are a number of architectural forms, of wonderfully varied shape, resting upon bases of massive solidity. The most striking of these is a squarebased monumental mass,--Holy Grail Temple, formerly Bass Tomb,--on which rests a well-shaped pyramid, crowned with a red and white circular shaft. The whole butte is well proportioned, having a base of sixteen square miles, and rising to a height of six thousand seven hundred and ten feet.
King Arthur Castle. Slightly to the east of it is another majestic butte, inferior only in size. The crowning shaft is missing here, but a castellated structure of red rock suitably dominates it. It bears the name King Arthur Castle, and is seven thousand three hundred and fifteen feet elevation.
Guinevere Castle. Still further to the east a winding ridge of rock, standing over one of the many oblique gorges within the main gorge, leads up to a third dominating figure of rock sculpture. This is Guinevere Castle, seven thousand two hundred and fifty-five feet.
Huethawali. Now let the eye rest upon the objects immediately before it, and more in the center of the Canyon. The chief object is an almost detached mountain, crowned with irregular cross-bedded layers of white sandstone. The Indians call this mountain Hue-tha-wa-li, (the final "i"being pronounced as "e,") which signifies White Rock Mountain. This is now the name they give to Bass Camp, and the Havasupais at El Tovar, who are starting for their Canyon home, will often remark: "We go Huethawali tonight." Its elevation is six thousand two hundred and eighty feet.
Darwin Plateau. The main plateau before us is named Darwin Plateau, after the learned evolutionist. Take this plateau as a rude and misshapen hand, imagine the thumb and little finger gone, and it will be seen that the other three fingers radiate from Darwin Plateau in the shape of three irregularly contoured, but fairly level plateaus, Huethawali resting like a great wart upon the base of the middle one of the three. To these plateaus have been given the following names: the one to the right is Grand Scenic Divide, the middle one is named Huxley Terrace, and the one to the left (the west) is Spencer Terrace.
For a few moments let us look at each of these plateaus, and grasp such features as the eyes may observe.
Grand Scenic Divide and Dick Pillar. Grand Scenic Divide was so named because it is the point where the granite of the Inner Gorge disappears from the Grand Canyon, and this disappearance makes as vast and wonderful a difference in the Canyon scenery as it is possible to find in its whole two hundred and seventeen miles of length. To the right of the Divide, looking eastward, where the granite is still in evidence, one can see the temples, buttes and towers that make the view from El Tovar and Grand View Points so interesting. Looking westward, the whole aspect changes, so markedly, indeed, that one scarcely can believe it to be the same Canyon.
Hence the appropriateness of the name. At the extreme end of this plateau, a detached rocky pillar stands peering down into the deepest recesses of the Inner Gorge. This bears the name Dick Pillar, from Robert Dick, the baker-geologist of Thurso, Scotland, who gave such material assistance to Hugh Miller in his studies of the Old Red Sandstone.
