Within half an hour of sunrise we had reached the top of the rise of which I have spoken, and a most beautiful view broke upon our gaze. Beneath us was a rich stretch of country, verdant with grass and lovely with foliage and flowers. In the background, at a distance, so far as I could judge, of some eighteen miles from where we then stood, a huge and extraordinary mountain rose abruptly from the plain. The base of this great mountain appeared to consist of a grassy slope, but rising from this, I should say, from subsequent observation, at a height of about five hundred feet above the level of the plain, was a most tremendous and absolutely precipitous wall of bare rock, quite twelve or fifteen hundred feet in height. The shape of the mountain, which was undoubtedly of volcanic origin, was round, and of course, as only a segment of its circle was visible, it was difficult to estimate its exact size, which was enormous. I afterwards discovered that it could cover less than fifty square miles of ground. Anything more grand and imposing than the sight presented by this great natural castle, starting in solitary grandeur from the level of the plain, I never saw, and I suppose I never shall. Its very solitude added to its majesty, and its towering cliffs seemed to kiss the sky. Indeed, generally speaking, they were clothed in clouds that lay in fleecy masses upon their broad and level battlements.