The US Department of Energy provides an overview of geothermal heating systems in various US cities, including Boise, ID, and Klamath Falls, OR.
This article by UN-Habitat discusses the potential of geothermal heating systems in urban areas, highlighting examples from US cities like San Francisco and New York.
This research paper published in the journal Energies reviews the current state of geothermal energy in US cities, including the use of geothermal heating systems.
The official website of the state of Idaho features an article on the geothermal heating system in Boise, which provides heat to over 5 million square feet of building space.
The National Renewable Energy Laboratory (NREL) provides a guide for cities considering geothermal heating systems, including case studies from US cities.
The University of Oregon features a case study on the geothermal heating system in Klamath Falls, OR, which has been in operation since the 1980s.
This video by the National Geographic Channel explores the use of geothermal heating systems in US cities, including interviews with experts and city officials.
This website provides resources and information on geothermal energy in urban planning, including a database of US cities with geothermal heating systems.