KEY:

AA-RSA= Automobile Association of South Africa map; aka=also known as; C=contour line; GBR=Guinness Book of Records 1974 and/or 1990; GCM=GeoCenter (RV Verlag) map; GPS = Global Positioning System recorded by HERO/4x4xplore personnel (antennae mounted at vehicle roof height so may be up to 2m higher than ground level); IGN = Institut Géographique National (France) 1:25K map; OS = Ordnance Survey Ireland/Northern Ireland 1:50k map, or other Government map; rd = road; Sign = official roadside sign; SH = sopt height (altitude point on map); web=authoritative Internet website
aka=also known as; C=contour line; GBR=Guinness Book of Records 1974 and/or 1990; GPS = Global Positioning System recorded by HERO/4x4xplore personnel (antennae mounted at vehicle roof height so may be up to 2m higher than ground level); OS = Ordnance Survey GB 1:50k or 1:25k map; SH=spot height (altitude point); Sign = official roadside sign; web=authoritative Internet website
*Feet are taken from OSGB 1":1 mi (1:63,360) 7th srs unless stated - NB road rebuilding may have changed (probably lowered) summit levels since OSGB 1" maps last published (c1972)
To see a maplet of British sites at 1:50K and 1:25K, open www.getamap.co.uk, and key in the OSGB grid ref below (without spaces).