Travel Reference
In-Depth Information
Morning Glory Pool
E
XTENSION TO
B
ISCUIT
B
ASIN
NOTES: This extension can also be approached from the other end by parking at Biscuit Basin
the map. Bicycles (allowed on Geyser Route Two) must be parked in the rack here.
The unpaved trail from Morning Glory Pool to Biscuit Basin (the former Grand Loop Road)
takes you about 0.8 mile (1.3 km) over a hill to several splendid springs and geysers. Since few
people explore beyond Morning Glory, it's a great place to escape the crowds and see some
Yellowstone treasures. The following description identifies the unmarked thermal features on
this trail for you. Be sure to stay on the trail!
Three or four small geysers line the riverbanks just beyond Morning Glory Pool, most not-
ably
East Sentinel Geyser,
whose cone makes an island near the east side of the Firehole River
when the water is high.
About 0.4 mile (0.6 km) from the Morning Glory area are two geysers below the wall that
supported the old road.
Artemisia Geyser
takes its name from the scientific name for sagebrush
(Artemisia tri-
dentata),
which shares its gray-green color with some of the geyserite deposits under the water
at the turquoise blue pool's edge. Its eruptions surge as much as 30 feet (9 m) with very little
warning, at intervals ranging from 9 to 34 hours. Uphill from Artemisia are two milky bub-
blers, one with a beautiful mossy overhang and rust-stained edge.
Atomizer Geyser
(also called Restless Geyser) consists of the two small cones between
Artemisia and the slope down to the river. It's named for the device that breaks a liquid down
into a fine spray. The geyser's atomizer-like spraying action and chugging sound come from
the cone farthest from the river, but only during major eruptions. Such eruptions, which may
go to 50 feet (15 m) high and last ten minutes, occur about twice a day.
