looks like a black mamba Snake (previous pinner) Black Mamba snakes are in fact not black. But they are named after the insides of their mouths which are black. In reality they are a green-ish grey colour.
Most poisonest snake in USA, but they are small. Eastern Coral snake To differentiate the KING snake from the poisonous CORAL snake, remember rhyme; Red on black, friend of jack. (King) Red on yellow, kill a fellow.