Sapphire
Pool, Biscuit Basin. This hot clear pool used to be surrounded by
biscuit like sinter formations, but after the big 1959 earthquake Sapphire
began erupting violently, 125 feet high at first, and blew most of the
biscuits away. These eruptions also enlarged the pool quite a bit.
It hasn't erupted since 1974, except for a couple of surprise eruptions
in 1991.
An
impressive hot spring cone along the Seven Mile Hole Trail. This
trail takes you down into the Grand Canyon of the Yellowstone, so it is
a bit of a hike. There are some nice backcountry camping sites at
the bottom, so if you feel like carrying a pack and get reservations, you
can rest before the hike back out.
Another,
smaller extinct hot spring along the Seven Mile Hole Trail.
A
small hot spring along the banks of Sulfur Creek, near the last backcountry
camp site at the bottom of the seven mile hole trail. Sulfur Creek
has weird greenish water, which makes me think it is mostly hot spring
runoff.
A
small waterfall along Sulfur Creek.
Hiking
out of the Seven Mile Hole Trail.
A
runoff channel in the Upper Geyser Basin, along the banks of the Firehole
River.
A
heard of Bison crossing the Yellowstone River in Hayden Valley. Hayden
Valley is a big grassy area, good for wildlife viewing. It has no
trees because it was once a lake bed, and the soil is too well drained,
too dry.
An
animal bed of sorts I guess, near Ice Lake, in the central part of the
park.
Ice
Lake. This is a good place for a short hike, especially if you want
to camp out in the backcountry without too much effort. There is
even a handicapped backcountry site here with a paved trail to it.
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