It was about noon when we reached the UPPER GEYSER BASIN, and I felt that it would be profitable to take a little rest before going any further into the mysteries of this "wonderland." OLD FAITHFUL was due to play shortly after we reached the camp, but I was too far away when it was announced she was in action to get the full benefit of the display, and went back to the camp to wait another seventy minutes. The long drive in the forenoon, and the exposure to the cold, caused me to feel weary and dull, nevertheless I made an effort to be on hand at every eruption, which to me became more and more fascinating. OLD FAITHFUL INN accommodates 400 guests. It is constructed of boulders and logs, with peaks, angles, dormers, French windows, etc. This most restful and impressive abode of the tourists is only two or three minutes' walk from Old Faithful Geyser, and so located as to give from its balconies a splendid view of the display. [Illustration: OFFICE OLD FAITHFUL INN © _Haynes, St. Paul_] The office-room is 75 feet square and 92 feet high, and reaches to the roof, with a massive chimney that rises to the top. The building is surrounded with beautiful grounds, furnished with rustic seats. The chimney is fourteen feet square with eight fireplaces, and balconies are built around three sides. While everything is of the rustic order, there is nothing commonplace about the hotel or its furnishings. "It is a creation of art from the foundation to the peak of the roof." OLD FAITHFUL GEYSER in the forefront of Old Faithful Inn is like a sentinel, and so named because of the regularity of its eruptions. Its crater, from which the water is expelled to a height of 150 feet, is an oblong opening, two by six feet, at the top of a mound of geyserite. Its eruptions sometimes vary a few minutes, in the meantime giving warning with two or three short spurts, increasing in volume until the maximum height is reached. The display is short, most of the water falling back into the crater, but no more fascinating or impressive scene could be found. The formations around are brilliant in color, resembling the more subdued tints and hues seen at the Mammoth Hot Springs.