in this regard. 
CONCLUSIONS 
The twin objectives of the first phase of the project have been 
achieved. The technique of manual interpretation of Landsat imagery 
as a tool for regional resource survey has been evaluated. It has 
also been shown that such interpretation can provide substantive 
information on geomorphology so as to form a framework for integrated 
resource mapping. 
Detailed and accurate thematic maps of the pilot area have been 
completed. These maps have been compiled after intensive field checking, 
a level which will not be possible to maintain in an extended mapping 
program. The intention is to combine these individual theme maps into 
a single data plane, in which the photomorphic units are subdivided 
to create integrated terrain units. This map should contain enough 
information to allow evaluation of the resource potential of the units. 
These maps will be used in the next phase for ground truth control 
purposes (i.e. training set selection, signature generation) in the 
automatic processing of Landsat data. This work will be carried out 
shortly on the M-DAS facility installed at the Remote Sensing Centre, 
Cairo. 
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D.G.M.R. 1980, Maps and Reports of the Directorate General of Mineral 
Resources, Jeddah, Saudi Arabia. 
Skipwith, P.1973i The Red Sea and Coastal Plain of the Kingdom of 
Saudi Arabia. 
Technical record TR-1973-1- D.G.M.R. Jeddah. 
Soil Survey Staff. Soil Conservation Service, U.S. Department of 
Agriculture 1975- Soil Taxonomy. Agricultural Handbook No. 436. 
U.S. Government Print Office, Washington D.C. 
USGS. 19771 Specifications for hand use, land cover and associated 
major Geog Prog. Open file report 77-555- U.S. Dept. Int. Geol. Surv. 
Reston, Virginia, 22092.