In Alberta there are two official vertical datums; The Canadian Geodetic Vertical Datum of 2013 (CGVD2013) and the Canadian Geodetic Vertical Datum of 1928 (CGVD28). This fact...
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Geodetic Control publishes coordinate data with respect the North American Datum of 1927 (NAD27) and the North American Datum of 1983 (NAD83). The NAD83 coordinate data is...
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Alberta Survey Control Marker (ASCM) data is available for three reference frames: The North American Datum of 1927 (NAD27), the original derivation of the North American Datum...
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This document describes the contents of an excel format spreadsheet for 32,971 published ASCMs. The coordinate and elevation information for these ASCMs are based on the...
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The Canadian Spatial Reference System (CSRS) derivation of the North American Datum 1983 (NAD83) was first implemented for Alberta Survey Control Markers (ASCMs) in 1999. Since...
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