Adult physiques of three populations living close to a major gold and copper mine are described and compared. Men of all three groups do not differ in stature, sitting height, biceps, triceps, subscapular and medial calf skinfold thicknesses. However, Wopkaimin men are heavier, with bigger mid-upper arm circumference and bi-iliac diameter than their Ningerum and Awin counterparts. Women of all three groups have similar stature, sitting height, biacromial diameter, biceps and triceps skinfold thicknesses. Wopkaimin women have greater values for mid-upper arm and calf circumference, subscapular, supra-iliac and medial calf skinfold thicknesses, and bi-iliac diameter. These differences are attributed to an increase in the plane of nutrition of the Wopkaimin, who live closest to, and have been most affected by the Ok Tedi gold and copper mining operation.