Monument Geyser Basin Trail is a 2.4 mile lightly trafficked out and back trail located near Yellowstone National Park, WY that features hot springs and is rated as moderate. The trail is primarily used for hiking and walking and is accessible from July until September.
Yellowstone National Park PO Box 168 Yellowstone National Park, WY 82190-0168 307-344-7381 (recorded information and an option to speak with someone) Additional info: http://www.nps.gov/yell/contacts.htm
Not an easy trail, This trail is super steep, hardly any shade and once you get to the top, you cant really go any where as the thermals holes are all over the place and you really don't want to mess with them. Do not recommend for kids. But the views are nice on the way up. As another reviewer said this is a one-time hike.
Other than a hissing fumarole, there isn't a lot of activity at Monument Geyser Basin. However, for the peculiarly shaped geyser cones, it's a distinctive backcountry thermal area. The trail is only about a mile in, but after a short distance, it becomes a steep mile! Just before reaching the basin, there is a scenic overlook of the Gibbon River Canyon that is a nice place to spend some time. For me, Monument Geyser Basin will probably be a one-time hike while nearby Artist's Paint Pots is a colorful more active site, if you dont mind sharing the experience with dozens of other people.
Very steep! Take plenty of water. Don't touch the thermal features. Some of them are extremely acidic.
After the first 0.5 miles, this is a steady climb up a mountain. Great exercise. We found this trail fairly difficult, but the geyser basin was not very exciting. The views during the climb were amazing, but the geyser basin was not worth the hike.