Five- and 7-month-old infants' sensitivity to the pictorial depth cue of height-in-the-picture-plane was assessed. Infants were presented with 2 objects, 1 higher than the other, and their reaching was recorded under monocular and binocular viewing conditions. The results showed that both age groups reached significantly more to the lower, apparently closer object under monocular view and that they reached equally to the 2 objects under binocular view. The results suggest that both 5- and 7-month-old infants are sensitive to the depth information provided by height-in-the-picture-plane. Demonstration of pictorial depth sensitivity at 5 months has implications for the mechanism underlying the onset of sensitivity to this type of depth information.