About Ordnance Survey Ordnance Survey has been mapping every feature of Great Britain since 1791 and is the definitive provider of mapping products in the UK. High quality maps and data sets is their specialism and with their evolution into digital mapping products such as custom made maps allowing personalisation and their online Getamap product with which you can create bespoke routes for walking, cycling running and hiking. Getamap also enables you to check the local weather, share with friends and find a pub! These two products also make great gifts. Ordnance Survey continues to stock its comprehensive range of paper maps which cover the entire UK; the two most popular ranges being the OS Explorer and OS Landranger; and they sell outdoor accessories from known brands such as Garmin, Memory Map and Silva.