Your profile shows that you live in Huntsville. If that's Huntsville, Alabama, then I believe that there are restrictions about possessing an Eastern Indigo in Alabama. If you live in another state then, congratulations!!! Beautiful snake with a reputation for really messing up its cage. Please post lots of photos.
The Alabama state regulations state:
It shall be unlawful to take, capture, kill, or attempt to take, capture or kill,
possess, sell, trade for anything of monetary value, or offer to sell or trade for anything of monetary value, the following nongame herp species (or any parts or reproductive products of such species) without a scientific collection permit or written permit from the Commissioner, Department of Conservation and Natural Resources, which shall specifically state what the permittee may do with regard to following species

220-2-.96)
Reptiles:
Eastern Indigo Snake (Drymarchon corais couperi)