Hunters and other recreators face challenges to gain access to private forestland in the United States because of an increasing number of landowners posting their land. A landowners' decision to post their land is influenced by a variety of factors, including landowner characteristics, hunter behavior, and parcel attributes. We used a logit model to help understand why family forest landowners in Minnesota post their land against public trespass. Factors that increased the likelihood of posting included younger owners, a perception that allowing access would interfere with one's own hunting, a perception that allowing access would result in damage to one's property, hunting as the primary reason for forestland ownership, larger parcel size, having a management plan, higher property values, and a high percentage of surrounding area open to public hunting. Implications of increased posting by family forest owners on hunting access and wildlife management are discussed.