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