What to Wear
Warm clothing should be worn, and one should be prepared for sudden changes of temperature common at an altitude of 7,500 feet. Men should have medium weight overcoats and sweaters, and women should have coats or sweaters. Slacks or riding breeches are recommended for both men and women. Stout shoes should be worn as they are most comfortable and best suited for walking about the geysers, terraces and other formations. Tinted glasses, serviceable gloves and field glasses will be found useful.