'Archive' collection of c.3,000 records of the former Industrial Minerals Assessment Unit (IMAU) relating to sand and gravel assessment projects in Scotland, 1978-88. Includes borehole and trial pit records, grading and resource assessment data and aggregate tests.

This layer of the map based index (GeoIndex) shows the location of available Mineral Assessment Reports, the information for the index has been taken from the BGS UK Sand and Gravel Database. Each report studied the sand and gravel resources of an area of between one hundred and two hundred square kilometres. This layer shows individual polygons of the geographical areas covered by each report. Selecting the individual polygons via the map based index (GeoIndex) application gives details of the corresponding report title, number, author(s), subtitle and the date report was first published. The Department of the Environment commissioned this Report series from the British Geological Survey.

Information from the Scottish quarries database has now been incorporated into the BritPits (British Pits) database Contains the site and rock type information of working and disused hard rock quarries in Scotland, covering all mainland Scotland and major Scottish islands. Database was initiated in the spring of 1997. Various stages of completeness in the dataset according to information received, quarries not documented will not be recorded. Quarry site data is given as point data (centre 2D XY data), at the point there is a quarry, areal extent is not recorded.