Reconnaissance mapping during the winter season of 1970 in Area 1914 A and portions of Area 1914 B revealed that the Khoabendus Formation is much more widespread in the north-western Kamanjab Inlier than is shown on the Geological Map of South West Africa (1963). Many occurrences of granite and gneiss formerly correlated with the Basement Complex proved to belong to the Khoabendus Formation. The outlines of the Khoabendus stratigraphy are presented. The lower part of the formation (West End Member) is made up of acid to intermediate lava (rhyodacite, dacite and rocks transitional to andesite) with associated pyroclastic rocks. This basal succession is overlain by a sequence of green andesitic tuff and lows of pyroxene andesite and hornblende andesite. Intruded into the volcanic rocks of the West End Member are bodies of adamellite and granodiorite porphyries which form sills and small apophysal bodies which were emplaced either towards the end of the volcanic period or post-date it.