It depends on how much original creative effort went into it. Copyright is fuzzy on purpose.
Copyright vests automatically and immediately in the creator of a creative work. This can be assigned or licensed to another party in part or in whole, at the discretion of the copyright holder.
Whether a work is creative, and therefore protected, by copyright is open to interpretation.
Facts cannot be protected through copyright. A creative representation of facts may be protected. E.g. a specific map might be protected, but this wouldn't prevent someone from making another map representing the same places