Bayan dogon bincike a lokacin rani na 1773, Mason ya ba da rahoton cewa mafi kyawun ɗan takarar shi ne Schiehallion (sa'an nan kuma aka kira shi Schiehallion), wani tsayi na 1,083 m (3,553 ft) tsakanin Loch Rannoch da Loch Banks a tsakiyar Highlands na Scottish. Ya ba da shawarar cewa gwajin zai "yi girmamawa ga al'ummar da aka yi shi" kuma ya ba da shawarar Whernside a Yorkshire, ko kuma Blencathra-Skiddaw massif a Cumberland a matsayin manufofin da suka dace. Royal Society ya kafa Kwamitin Zane don yin la'akari da batun, ya nada Maskelyne, Joseph Banks da Benjamin Franklin daga cikin mambobinta.
Kwamitin jan hankali