Geothermal Cultural Resources
Present, Potentially Affected
- Antelope Valley Neset (AVS - Neset 345 kV Transmission Line Project)
- BLM-NV-WN-ES-08-01-1310, NV-020-08-01 (Blue Mountain Geothermal Well Field and Power Plant EA)
- Big Eddy-Knight (Big Eddy-Knight Transmission Project Environmental Impact Statement)
- Boardman to Hemingway (Environmental Impact Statement and Land Use Plan Amendments for the Boardman to Hemingway Transmission Line Project)
- Cameron to Milford-138kV Transmission Line (Cameron to Milford - 138kV Transmission Line Project)
- Central Ferry Lower Monumental (Central Ferry-Lower Monumental 500-kilovolt Transmission Line Project)
- DOE-EA-1116 (Kalina Geothermal Demonstration Project EA for Geothermal/Power Plant, Geothermal/Well Field, Geothermal/Transmission)
- DOE-EA-1733 (Calpine Enhanced Geothermal Systems Project EA at Geysers Geothermal Area for Geothermal/Well Field)
- DOE-EA-1849 (EA for Northern Nevada Geothermal Power Plant Project at McGuinness Hills Geothermal Area)
- DOI-BLM-CA-017-05-051 (Basalt Canyon Geothermal Pipeline Project Environmental Assessment and Draft Environmental Impact Report for Geothermal/Well Field)
- DOI-BLM-CA-EA-2002-??? (Glass Mountain Exploration Environmental Assessment/Initial Study for Geothermal/Well Field)
- DOI-BLM-CA-ES-2007-017-3200 (Final Environmental Impact Statement for the Truckhaven Geothermal Leasing Area)
- DOI-BLM-CA-ES-2013-002+1793-EIS (Casa Diablo IV Geothermal Development Project EIS at Long Valley Caldera Geothermal Area for Geothermal/Power Plant)
- DOI-BLM-NV-B010-2011-0015-EA (McGinness Hills Geothermal Development Project EA for Geothermal/Power Plant)
- DOI-BLM-NV-C010-2010-0006-EA (Gabbs Valley and Dead Horse Wells Geothermal Exploration Projects EA for Geothermal/Exploration)
- DOI-BLM-NV-C010-2010-0008-EA (EA at Soda Lake Geothermal Area for Geothermal/Exploration Drilling and Well Testing)
- DOI-BLM-NV-C010-2010-0010-EA (EA at Coyote Canyon and Dixie Meadows for Geothermal/Exploration Drilling and Well Testing)
- DOI-BLM-NV-C010-2011-0001-EA (Coyote Canyon Utilization Project EA for TGP for Geothermal/Power Plant)
- DOI-BLM-NV-C010-2011-0501-EA (EA for Development Drilling and Well Testing at Patua Geothermal Project Phase II for Geothermal/Well Field)
- DOI-BLM-NV-C010-2011-0516-EA (EA for Thermal Gradient Holes at Dixie Meadows Geothermal Exploration Project for Geothermal/Exploration, Geothermal/Well Field)
- DOI-BLM-NV-C010-2012-0029-EA (Tungsten Mountain Geothermal Exploration Project EA for Geothermal/Well Field Drilling and Well Testing)
- DOI-BLM-NV-CC-ES-11-10-1793 (Salt Wells Geothermal Energy Projects EIS for Geothermal/Power Plant Development Drilling)
- DOI-BLM-NV-CO10-2011-0501-EA (EA for Phase II Production Wells and Thermal Gradient Holes at Patua Geothermal Project for Geothermal/Well Field)
- DOI-BLM-NV-W010-2010-0004-EA (New York Canyon Geothermal Exploration Project EA for Exploration Drilling and Well Testing)
- DOI-BLM-NV-W010-2011-0001-EA (EA of the Leach Hot Springs Geothermal Exploration Project at Grass Valley Geothermal Area for Geothermal/Exploration, Geothermal/Well Field Drilling and Well Testing)
- DOI-BLM-NV-W010–2012–0005–EA (EA for Development Drilling at New York Canyon Geothermal Utilization and Interconnect Project for Geothermal/Power Plant, Geothermal/Transmission, Geothermal/Well Field)
- DOI-BLM-OR-P000-2010-0003-EA (EA for Drilling, Testing and Monitoring of up to 12 Temperature Gradient / Passive Seismic Geothermal Exploratory Wells at Newberry Caldera Geothermal Area for Geothermal/Exploration)
- DOI-BLM-OR-P040-0021-EA (EA for Exploratory Wells at Midnight Point and Mahogany Geothermal Exploration Projects, Glass Buttes, Oregon for Geothermal/Exploration)
- DOI-BLM-UT-C010-2010-0042-EA (EA of Cove Fort/Sulphurdale Geothermal Utilization Plan for Geothermal/Power Plant)
- Devers Palo Verde No 2 (EIS/EIR Devers-Palo Verde No. 2 500kV Transmission Line Project)
- EA for Well Field Development at Patua Geothermal Area - DOI-BLM-NV-C010-2011-00016-EA (EA for Phase II of Patua Geothermal Project for Geothermal/Exploration, Geothermal/Well Field)
- EA-NV-030-07-006 (EA for Exploration Drilling at Carson Lake Corral Geothermal Area for Geothermal/Well Field)
- Eldorado Ivanpah Transmission Project (EIS/EIR for the Eldorado-Ivanapah Transmission Project)
- Gateway West Transmission Line (Environmental Impact Statement for the Gateway West Transmission Line Project)
- Grand Coulee Transmission Line (Grand Coulee's Third Powerplant 500-kilovolt Transmission Line Replacement Project, Preliminary Environmental Assessment)
- LLNV-WO1000-2009-0002-EA (EA for Observation Wells at Jersey Valley II Geothermal Exploration Project)
- McNary-John Day (McNary-John Day Transmission Line Project Environmental Impact Statement)
- Mona to Oquirrh Transmission (Mona to Oquirrh Transmission Corridor Project and Proposed Pony Express Resource Management Plan Amendment)
- NV-EA-030-07-05 (EA for Thermal Gradient Holes at Salt Wells for Geothermal/Exploration)
- North Steens 230kV Transmission (North Steens 230-kV Transmission Project EIS)
- One Nevada (Final Environmental Impact Statement for the One Nevada Transmission Line Project (ON Line Project))
- San Juan Basin EC (San Juan Basin Energy Connect Project Environmental Impact Statement)
- Sigurd Red Butte No2 (Sigurd to Red Butte No. 2 345kV Transmission Project)
- Southline Transmission Line (Environmental Impact Statement for the Southline Transmission Line Project)
- Sun Valley to Morgan Transmission Line (Environmental Impact Statement for the Sun Valley to Morgan Transmission Line Project)
- Sunzia Southwest (SunZia Southwest Transmission Project)
- Tehachapi Renewable Transmission (Environmental Impact Statement for the Tehachapi Renewable Transmission Project)
- Transwest Express (Transwest Express Transmission Project Environmental Impact Statement)
- Vantage Pomona Heights (Environmental Impact Statement for the Vanage to Pomona Heights 230kV Transmission Line Project)
- West-wide Energy Corridors (West-wide Energy Corridor Programmatic Environmental Impact Statement)
The Antiquities Act of 1906 was the first piece of legislature to provide federal protection for cultural resources and establish that archeological sites are important public resources. Subsequently, Congress enacted four more acts (National Historic Preservation Act Federal Land Policy and Management Act American Indian Religious Freedom Act and the Archaeological Resources Protection Act) that strive to protect historical places and cultural resources from degradation.
History is important because it can give archaeologists answers to the following questions:
- Where did the group of people come from?
- What was the life expectancy of the people who lived here?
- What did they eat?
- What daily practices did they partake in?
- What kind of climate and weather patterns occurred at that time?
- What happened to the people on this land?
- How big was their geographical radius?
- What kind of technological advancements were made?
- How did they think?
This information merits a certain level of appreciation for all the inventions and discoveries that have led to today’s successes. History can strengthen a human’s comprehension of what current generations are capable of doing. This information can then be used to solve current problems.
Cultural Resources Impacts & Mitigation
Geothermal development can have a number of impacts on culturally significant resources, through construction activities such as:
- Land disturbance
- Changes in runoff patterns
- Hydrological alterations and project emissions (sediment, runoff and water releases)
- Visual obstruction
Hiring an archaeologist in the design phase that can further assess the area for cultural significance can mitigate these impacts. Archaeological findings can dictate the best placement for well pads, access roads and water diversion. A finding may also reveal the proposed site location is a listed property on the National Register of Historic Places, or obstructs views of a National Historic Trail. Under these conditions, site relocation is preferred.
If the project is on Native America land, meeting early with Native American governments will help determine where sacred landscapes and traditional cultural practices occur.
Factors Affecting Cultural Resources
The factors below are key to the approval of geothermal development on or near lands containing cultural resources. Around the U.S., there are several protected cultural sites that are governed by the Antiquities Act, National Historic Preservation Act, Federal Land Policy and Management Act, American Indian Religious Freedom Act and the Archaeological Resources Protection Act.
Indian and Alaska Native Lands
Geothermal site proposals occasionally occur on Indian and Alaska Native Lands. Whether or not the project is allowed depends on each tribe. Due to the spiritual significance of sacred grounds, practices, resources, and artifacts, tribes aim to protect these areas first. Tribes also view sovereignty as their greatest value. The public sector may be viewed as a threat to the unique resources found on Indian and Alaska Native lands.
The Bureau of Indian Affairs (BIA) governs Indian reservations. The BIA provides services to federally recognized tribes and assists in the management of controversial surface acres and subsurface mineral estates. Tasked with building positive relationships between tribes and the federal government, the BIA creates laws and regulations that encourage self-governance and self-determination of Indian tribes and Alaska Natives.
Historical Places and Artifacts
The National Register of Historic Places Program protects properties of significance and uses the National Park Service’s National Register of Historic Places to mobilize public support. To be listed, each property must be evaluated and meet specific criteria. It includes surveying the property’s:
- Age and condition (at least 50 years old and mirror’s its original image)
- What kind of events, activities and people frequented this place?
- Does it possess rare architecture, engineering feats, or landscape history?
- Are there archeological surveys that point to major discoveries?
To list a property, there is a nomination process that includes a form and notifying the surrounding area officials. If the National Park Service approves the property, it is added to the online database. Listing ensures historical documentation and only secures the site’s protection from human degradation. All other advantages are taken case by case.
More times than not, geothermal leasing and drilling will not be allowed on or near a place that is listed on the National Register of Historic Places. Even if a site is not listed, but has significant artifacts, the same result could occur.