Based on microhistological examinations of feces, Cervus elaphus (elk) from a reintroduced herd on the Cumberland Plateau in southeastern Kentucky exhibited an annual diet of grasses (24%), forbs (27%), and browse (32%). Diets shifted seasonally, possibly in response to availability and palatability. Forbs dominated the summer diet (34%), whereas grasses, forbs, and woody browse accounted for approximately equal portions of the fall diet. Grasses (40%), and browse (46%) dominated the diet during winter and spring, respectively. Grasses were eaten less during spring (10%) than during any other month. Nutritional quality does not appear to be limiting in this growing population.