'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