BACK BASIN Phillip’s Caldron Grey Lakes Green Dragon Spring Yellow Funnel Spring Palpitator Spring Pearl Geyser Vixen Geyser Black Hermit’s Caldron Minute Geyser Mt. Holmes (10,336 feet—3160 meters) visible to the northwest Veteran Geyser Monarch Geyser Crater Emerald Spring Bathtub Spring PORCELAIN BASIN Ebony Geyser Bear Den Geyser Crackling Lake Whale’s Mouth Dark Cavern Geyser Arch Steam Vent Cistern Spring NORRIS MUSEUM Steamboat Geyser Valentine Geyser Lodge Geyser Little Whirligig Geyser Sieve Lake Africa Geyser Pinwheel Geyser Echinus Geyser Hurricane Vent Colloidal Pool Congress Pool Ragged Spouter Blue Geyser Feisty Geyser Carnegie Drill Site Parking Porcelain Terrace Springs Nuphar Lake LEGEND trails and boardwalk described thermal features other thermal features roads and parking TO MADISON—16 MILES—26 KM TO MAMMOTH HOT SPRINGS—22 MILES—35 KM TO CAMPGROUND—½ MILE—⅘ KM TO CANYON VILLAGE—12 MILES—19 KM DANGEROUS THERMAL AREA Boiling Water—Thin Crusts Always Stay on Constructed Walkways Transcriber’s Notes —Silently corrected a few typos. —Retained publication information from the printed edition: this eBook is public-domain in the country of publication. —In the text versions only, text in italics is delimited by _underscores_.