'Reconnaissance Sketch and Triangulation Chart. Marsabit - the Abyssinian Frontier. By G.F. Archer.'
Scope & Content:
Indicates hydrology, settlements and relief with form lines and spot heights, with brief descriptions of vegetation and topography. Also shows the survey route
'Triangulation Chart and Reconnaissance Survey. E-Uaso Nḡiro - Marsabit'. 'By G.F. Archer F.R.G.S. District Commissioner. Marsabit 1909:1910.'
Scope & Content:
Indicates hydrology, settlements and relief with form lines and spot heights, with some indication of vegetation. Also shows a caravan route and game reserve boundary
A field sheet. 'Sh[eet].1 Copy' - War Office ledger
Scope & Content:
Shows a route from Uaso Nḡiro to Marsabit, indicating hydrology and trig points, with some indication of relief with form lines and spot heights. Also provides brief descriptions of topography
Indicates hydrology, settlements and relief with form lines and spot heights, with brief descriptions of vegetation and topography. Also shows the survey route