Table:
text: List of Orkney islands
Main list
Main list
Island Group_ Area_ha_ Population Height_m
Auskerry North Isles 00085 85 4 18
Brough of Birsay Mainland 00016 16 0 42
Burray South Isles 00903 903 409 80
Calf of Eday North Isles 00243 243 0 54
Calf of Flotta South Isles 00016 16 0 16
Cava South Isles 00107 107 0 38
Copinsay South Isles 00073 73 0 70
Damsay North Isles 00018 18 0 11
Eday North Isles 02745 2745 160 101
Egilsay North Isles 00650 650 26 35
Eynhallow North Isles 00075 75 0 30
Fara South Isles 00295 295 0 43
Faray North Isles 00180 180 0 32

Question: What is the lowest altitude (m) on the island of Burray from the Orkney Islands list?