Abstract: Implementations of the disclosure include a lid for covering a vessel, having a cover portion and a base portion, and methods of operating such a lid. The cover portion and the base portion may be separate individual pieces. In some implementations, the cover portion is adapted to slide along the base portion between an open position and a closed position. In some instances, the cover portion slides along an arcuate path. In some implementations, when the cover portion is in a cover-removal position, it can be separated from the base portion without separating the base portion from the vessel. In such implementations, when the cover portion is in a lid-removal position, the cover portion and the base portion can be separated from the vessel while remaining attached to one another.