Unless stated otherwise the Canmore dataset contains Ordnance Survey derived data which is delivered through Canmore website under the terms of the OPEN GOVERNMENT End User Licence. http://www.ordnancesurvey.co.uk/docs/licences/os-opendata-licence.pdf "Canmore-download-Thu, 28 Mar 2024 11:23:00 +0000.csv" CANMORE ID,SITE NUMBER,SITE NAME,SITE TYPE,SITE EASTING,SITE NORTHING,COUNCIL,COUNTY,PARISH,NGR,URL "2527","HY41SW 19","Grainbank","Souterrain (Prehistoric)","344125","1011615","ORKNEY ISLANDS","ORKNEY","KIRKWALL AND ST OLA","HY 44125 11615","http://canmore.org.uk/site/2527", "2535","HY41SW 24","Hatston","Souterrain (Prehistoric), Structure(S) (Period Unassigned)","344120","1011620","ORKNEY ISLANDS","ORKNEY","KIRKWALL AND ST OLA","HY 4412 1162","http://canmore.org.uk/site/2535", "269628","HY41SW 1359","Hatston Airfield","Aircraft Hangar(S) (20th Century), Slipway (20th Century)","344238","1011629","ORKNEY ISLANDS","ORKNEY","KIRKWALL AND ST OLA","HY 44238 11629","http://canmore.org.uk/site/269628",