how can i describe the man tom meets at the swamp?

From the text:

Tom lifted up his eyes and beheld a great black man, seated directly opposite him on the stump of a tree. He was exceedingly surprised, having neither seen nor heard any one approach, and he was still more perplexed on observing, as well as the gathering gloom would permit, that the stranger was neither negro nor Indian. It is true, he was dressed in a rude, half Indian garb, and had a red belt or sash swathed round his body, but his face was neither black nor copper colour, but swarthy and dingy and begrimed with soot, as if he had been accustomed to toil among fires and forges. He had a shock of coarse black hair, that stood out from his head in all directions; and bore an axe on his shoulder.

He scowled for a moment at Tom with a pair of great red eyes.

"What are you doing in my grounds?" said the black man, with a hoarse growling voice.