Glass Mountain Geothermal Area

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Glass Mountain Geothermal Area

Area Overview

Geothermal Area Profile

Location: California

Exploration Region: Cascades Geothermal Region

GEA Development Phase: none"None" is not in the list of possible values (Phase I - Resource Procurement and Identification, Phase II - Resource Exploration and Confirmation, Phase III - Permitting and Initial Development, Phase IV - Resource Production and Power Plant Construction) for this property.

Coordinates: 41.7°, -121.45°

Resource Estimate

Mean Reservoir Temp:

Estimated Reservoir Volume:

Mean Capacity:

USGS Mean Reservoir Temp:

USGS Estimated Reservoir Volume:

USGS Mean Capacity:

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History and Infrastructure

Operating Power Plants: 0

No geothermal plants listed.

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Developing Power Projects: 0

No geothermal projects listed.

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Power Production Profile

Gross Production Capacity:

Net Production Capacity:

Owners  :

Power Purchasers :

Other Uses:

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Regulatory and Environmental Issues

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Exploration History

First Discovery Well

Completion Date:

Well Name:



Initial Flow Rate:
  • "b" is not declared as a valid unit of measurement for this property.
  • The given value was not understood.

Flow Test Comment:

Initial Temperature:

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Well Field Description

Well Field Information

Development Area:

Number of Production Wells:

Number of Injection Wells:

Number of Replacement Wells:

Average Temperature of Geofluid:

Sanyal Classification (Wellhead):

Reservoir Temp (Geothermometry):

Reservoir Temp (Measured):

Sanyal Classification (Reservoir):

Depth to Top of Reservoir:

Depth to Bottom of Reservoir:

Average Depth to Reservoir:

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Geology of the Area

Geologic Setting

Tectonic Setting:

Controlling Structure:

Topographic Features:

Brophy Model:

Moeck-Beardsmore Play Type:

Geologic Features

Modern Geothermal Features:

Relict Geothermal Features:

Volcanic Age:

Host Rock Age:

Host Rock Lithology:

Cap Rock Age:

Cap Rock Lithology:

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Geofluid Geochemistry


Salinity (low):

Salinity (high):

Salinity (average):

Brine Constituents:

Water Resistivity:

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NEPA-Related Analyses (2)

Below is a list of NEPA-related analyses that have been conducted in the area - and logged on OpenEI. To add an additional NEPA-related analysis, see the NEPA Database.


Document # Analysis
Applicant Application
DOE-EIS-0298 EIS CalEnergy Generation Bonneville Power Admin
United States Department of Energy
Geothermal/Well Field
Geothermal/Power Plant
Geothermal/Grid Connection
DOI-BLM-CA-EA-2002-??? EA Calpine Corporation (Calpine) and CPN Telephone Flat Inc. (CPN) BLM Geothermal/Well Field Exploration Drilling
Thermal Gradient Holes

Exploration Activities (3)

Below is a list of Exploration that have been conducted in the area - and cataloged on OpenEI. Add.png Add a new Exploration Activity

Page Technique Activity Start Date Activity End Date Reference Material
Magnetotellurics At Glass Mountain Area (Cumming And Mackie, 2007) Magnetotellurics

Thermal Gradient Holes At Glass Mountain Area (Cumming And Mackie, 2007) Thermal Gradient Holes

Time-Domain Electromagnetics At Glass Mountain Area (Cumming And Mackie, 2007) Time-Domain Electromagnetics


List of existing Geothermal Resource Areas.

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