Overview: Firehole River bridge and a following boardwalk lead to Midway Geyser Basin that features Excelsior Geyser crater left after the geyser exploded and now just producing a whole lot of hot water that streams and steams down to the river; Grand Prismatic Pool that is a large round pool of blue hot water with 'prismatic' meaning 'brilliant' here and not 'having form of a prism'; and also a couple of small pools.
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.
Permit $$
NPS
Yellowstone National Park Entrance Fees $25 per car & $12 per person
Directions
Road
Paved - Car Okay
To hike Parking lot is located on the west side of Grand Loop Road about 7 miles from Old Faithful and 10 miles from Madison junction.
Route Editor
Route Scout
