Sapphire Pool

Description

Three miles north of Old Faithful is Biscuit Basin, named for the unusual biscuit-like deposits formerly surrounding Sapphire Pool. Following the 1959 Hebgen Lake earthquake, Sapphire erupted, and the "biscuits" were blown away.

*Adapted from the NPS Old Faithful Area Trail Guide and the Old Faithful Area Interactive Map

Feature Type

Not Reported

Inventory ID

UBB005

Location

Latitude: 44.48495
Longitude: -110.8552
Survey Date: September 14, 1998

Geographic Area: Firehole River Drainage

Thermal Region: Upper Geyser Basin

Thermal Complex: Biscuit Basin

Ranger District Contact: Old Faithful District, Colleen Rawlings (307) 344-2701

Feature Data

Data Source	Supplied By	Sample Date	Temp	Vent Temp	pH	Cond	Extended Data

Participant	USGS	1/1/1800	--	--	--	--	Yes	Details
Park		9/14/1998	82.5°C	0°C	8.06	2400 µS/cm	No

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