The Calvert County Heritage Committee has opened its annual photo contest to students attending the College of Southern Maryland. The photo competition supports awareness of the historical and cultural heritage of Calvert County and requires entrants to include a brief statement explaining the significance of the photo being submitted. Photos can be black and white or color, must be printed on standard photo paper and should be no larger than 8 ½ by 11 inches. Contest deadline is May 20. Photos can be dropped off or mailed with entry form to College of Southern Maryland Prince Frederick Campus, 115 J.W. Williams Road, Prince Frederick, Md., 20678, Attention: CSM Photo Category. A drop box for entries will be located in the Flagship Building Main Office. For information and entry form, contact CSM Senior Media Relations Coordinator Dorothy Hill at 301-934-7745 or dmhill@csmd.edu.