Abstract Although CeGe is a simple binary alloy, little information on its magnetic properties is available. Earlier studies suggested antiferromagnetic order below T N = 10.5 K . We present the results of a detailed resistivity and magnetoresistance study down to 2 K together with μSR spectroscopic data. The measurements verify the transition into long-range magnetic order at the temperature reported. Anomalous behaviour of the resistivity around T N is interpreted in terms of the formation of superzone magnetic gaps in the ordered phase. The μSR spectra for T< T N indicate a complex antiferromagnetic spin structure.