Trigonometrical and topographical survey of the districts of Mandeville and Christchurch [cartographic material] : shewing the trigonometrical stations, 1850 / J. Thomas, chief surveyor.

Shows 40 numbered trigs. between Ashley River and Lake Ellesmere, plus Native and European reserves and indicates nature of ground and ground cover.

Some relief shown by form lines. Depths shown by soundings.

Hand coloured.

Alexander Turnbull Library holds CT scan and Neg. C3519.

Alexander Turnbull Library copy 1 (Acc.1270) is incomplete and inscribed by J. Morris, Chief Surveyor; copy 2 (Acc.27187) is edged with black fabric and annotated in pen and ink.

Scale [ca. 1:63,360]