15th September 1944. This map is for the purpose of identification of road numbers only. For classification details and descriptions see Sectional Maps; Based on Philippine Islands, Northern Luzon, First edition AMS 1
2 August 1944. Information from informants as at 1941 and map 7(a) S.R.D static report. Shows boundary of swamp area, trackes, metalled roads, Japanese Airfield, rubber estates.
16th December 1943. Based on standard traverse by A R Miller LS, MIS, 1938-30. Topographical information from 0 km to 32 km from field notes and from 32 km to Maprik from air photography by Australasian petroleum Co.
14 April 1944. From maps of the Sarawak Oilfields Limited Survey Dept dated [blank], corrected to 12.3.41, with annotations from informants, formerly resident.