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Grand Geyser
Description
An eruption of Grand Geyser, the tallest predictable geyser in the world, occurs every 7 - 15 hours. A classic fountain geyser, Grand erupts from a large pool with powerful bursts rather than a steady column like Old Faithful. An average eruption lasts 9 - 12 minutes and consists of 1 - 4 bursts, sometimes reaching 200 feet (60m).
*Adapted from the NPS Old Faithful Area Trail Guide and the Old Faithful Area Interactive Map
Feature Type
Geyser
Inventory ID
UGrG001
Location
Latitude: 44.46665
Longitude: -110.8369
Survey Date: March 8, 1999
Geographic Area: Firehole River Drainage
Thermal Region: Upper Geyser Basin
Thermal Complex: Grand Group
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 |
|
|
|
|
Park
|
|
3/8/1999
|
62.5°C
|
83°C
|
8.82
|
2200 µS/cm
|
No
|
|
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