The newest single men over 70 in Keystone, South Dakota, displayed above, are eager to meet someone special. If you are a woman seeking companionship, join Singles Over 70s and explore the exciting world of online dating in Keystone. There is a vibrant community waiting for you, so take the plunge and see who you might meet. A great first date suggestion is to take a scenic walk at Mount Rushmore and enjoy the beautiful views together.