A qualitative analysis and interpretation of magnetic data obtained from airborne magnetometer and scintillometer surveys of the Precambrian Arabian Shield, Kingdom of Saudi Arabia, show that some rock units and geologic features exhibit characteristic magnetic expressions and anomalies. Circular to elliptical anomalies are attributed to younger intrusive or less commonly older masses, stocks, and plugs of granitic rocks. The linear anomalies may be expressions of faults, lineation trends, or dike swarms. Reconnaissance exploration for evidence of mineralization are recommended in the vicinity of some of these anomalies.