The B.C. Conservation Data Centre’s spatial view of publicly available, known locations of species and ecological communities at risk. This spatial view is split into the "Publicly Available Occurrences" layer and "(Extirpated and Historical) Publicly Available Occurrences" layer. The Extirpated and Historical layer includes element occurrences that have a last observation date greater than 40 years ago and element occurrences that are extirpated due to general habitat loss or degradation of the environment in the area. Use the field ‘Rank Description’ to differentiate between Historical and Extirpated element occurrences in this layer. All element occurrences are polygons: the size of the polygon usually reflects the locational uncertainty associated with the source data, represented with varying sized circles. Some polygons may be larger to reflect the actual area covered by the element occurrence. The field "Representational Accuracy" is used to communicate how accurately the polygon reflects the actual area covered by the element. If you do not find an element occurrence in your area of interest, this means there are none currently mapped in the CDC database. The best way to verify whether an area contains a species or ecosystem at risk is to have do a detailed assessment of the property during the appropriate season.

The B.C. Conservation Data Centre spatial layer that displays a generalised area that masks the precise locations of secured occurrences of species and ecosystems at risk. These are masked for public viewing and download. The occurrences may be secured due to the species or ecosystems being susceptible to persecution or harm, or for proprietary reasons. For information or to obtain details about Masked Occurrence Records, please contact the CDC at cdcdata@gov.bc.ca and provide projects details including precise location information and activities expected to occur on site or other reasons for requiring the information. Release of details of secured occurrences is subject to the signing of a Confidentiality and Non-reproduction Agreement and a demonstrated "need-to-know".