Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1299; Canna to Point of Sleat, Area in SqKm: 546, (09/05/2009 to 23/06/2009), Standard: IHO S44ed5 Order 1a. Contract: ETV. FY 2009/10. Contractor: NetSurvey.