Little evidence would remain and even less be visible by now. But it is reasonable to suspect that they roamed far and wide. Exploring was in their nature.
There is a stone fortification on the south coast of Middleton, RI that is attributed to the Vikings. It was there long before the Pilgrims landed at Provincetown, MA.
They have never been able to prove it. However, they know the English did not build it and neither did the Indians.