Review for MGM National Harbor Review For MGM National Harbor Google User Mar 29 '17 at 1:48 Well done!! Having MGM in Maryland is wonderful never thought Prince George's County would have such an elegant place so close to home BRAVO!! THE employees are friendly and very professional the resort is upscale believe me if you choose MGM National Harbor for business or pleasure you won't be disappointed. Enjoy! View full site to comment or like