Link to Resource URL Wind Turbine Visibility and Visual Impact Threshold Distances Basic Information Content Category Published Material or Subject Matter Website Material Type Study, Investigation, Report, White Paper Summary or Abstract a study sponsored by the BLM's Wyoming State Office, 377 observations of 5 wind facilities in Wyoming and Colorado were made under various lighting and weather conditions in three different seasons. The wind facilities ranged in size from 34 to 274 turbines and contained several models of turbines with capacities of 1.0 to 2.1 MW and blade tip heights of between 298 and 404 ft (91 and 123 m). Author or Creator Robert Sullivan, Argonne National Laboratory Citation Information Available from BLM Library? No Source Information Owner Entity U.S. Depatment of Energy, Office of Science Laboratory, UChicago Argonne, LLC Point of Contact Robert Sullivan Point of Contact Email sullivan@anl.gov Internal/External Usage External Tagging Information Admin Area Relevance National Office Alaska Arizona California Colorado Eastern States Idaho Montana-Dakotas Nevada New Mexico Oregon-Washington Utah Wyoming NOC BLM Core Business NEPA process/environmental review Planning - Project or Activity BLM Program Renewable Energy Science Arena Applied Sciences and Technology Social Sciences Science Discipline/Field Environmental Arts, Visuals, and Light