Overview

Hype:

Biscuit Basin in the Old Faithful Area is home to Sapphire Pool, Mustard Spring, Avoca Spring, Shell Geyser, Jewel Geyser, and several other geothermal features.

Trail Condition: Class 0 (Trail is paved. No elevation gain.)

Time: 25 minutes

Length: 0.6 miles round trip

Elevation Gain: Negligible

Fees: Entrance fee

Recommended Ages:

	0-3
	4-11
	12-19
	20-49
	50-69
	70+

Recommended Months to Visit:

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Features:

Geothermal Features
No Drinking Water
Rivers and Streams
Mountains
Marked Trails
No Restrooms
Road Access is Paved
Access Road is 2WD Accessible
Interpretive Signs
Viewpoint, Overlooks, Vistas
Hiking Trails
Wildlife and Birding
Zoos and Aquariums

Getting There

Navigate to 44.485050, -110.852547.

Route

Biscuit Basin is part of Upper Geyser Basin.

The following information was taken from the Old Faithful Area Trail Guide, which is available at the Old Faithful visitor center.

Three miles (5 km) north of Old Faithful is Biscuit Basin, named for the unusual biscuit-like deposits that used to surround Sapphire Pool. Following the 1959 Hebgen Lake Earthquake, Sapphire erupted, and the "biscuits" were blown away; it last erupted in 1991. Sapphire remains one of the most beautiful blue pools in the park. Mustard Spring provides a bright color contrast, and Jewel Geyser adds excitement as it erupts every 7-10 minutes.