Grade 2 Survey Data


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With the pace of exploration, the need for a rapid survey to direct further work was appreciated early on and most of this was done to a minimum of BCRA grade 2. This became a de-facto minimum standard and condition of accesss for exploration. A survey comprising two A3 sheets was published by the Morgannwg Caving Club.

Explorers should provide at least one of copies of original survey notes and data files, and comply with the rest of the survey policy.

The standard survey handling software, and therefore the archived raw data format, was Survex. Grade 2 data in that format is available here, zipped (192kB). OD2.svx is the top level file to control processing of the individual files.