A well is a facility defined by its function to extract fluids from within the earth. A well may be a simple hole in the ground (generally not the kind of wells we're interested in here...), but in general will consist of a dug shaft or drilled borehole. Drilled wells may include one or more boreholes (well bores) that are accessed from the surface at an origin collar, which defines the origin of the well. Individual boreholes in the well my have origin points (collars) that are located within existing boreholes in the well (e.g. sidetracks). The most common situation, especially for water wells, is a well consisting of a single borehole with a collar that is coincident with the well origin.

Well header features represent individual wells, and are the anchor for a variety of observations and other features.

From: http://www.stategeothermaldata.org/data_delivery/content_models/well_header
This layer contains data related to wellheaders in the state of West Virginia, obtained by the AASG for the Geothermal Data Project.  The data table includes general information on the location of the borehole, well type and location uncertainty.  Information sources are included in the dataset. The HeaderURI for a particular well is the cross-referencing link (foreign key) used to associate the feature with web based information on the feature including pictures or other information. The original data and metadata is available in spreadsheet format and can be downloaded from the USGIN Repository at: http://repository.stategeothermaldata.org/repository/resource/98ddf901b9782a25982e01af3b13ea1c/
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{'Title': 'WV WellHeaders', 'Author': 'West Virginia Geological and Economic Survey', 'Comments': '', 'Subject': 'West Virginia Wellheaders', 'Category': '', 'AntialiasingMode': 'None', 'TextAntialiasingMode': 'Force', 'Keywords': 'well,borehole,header,geothermal,aasg,wms,wfs'}
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