Noche Buena is an open pit mine.

Facilities consist of waste rock stockpiles, a heap leach pad, process ponds, a Merrill-Crowe plant, and various support facilities. Run-of-mine ore is placed on the heap leach pad for leaching via drip emitters after adding lime to each truckload. There are four ponds: pregnant pond, intermediate pond, and two contingency ponds.

Noche Buena receives solid cyanide via isotankers with flobins stored in a warehouse as a backup supply. There is an offload facility for the isotankers as well as an adjacent flobin mixing facility. Five tanks are used for receiving, mixing, and distributing the reagent-grade cyanide: dissolution (for isotankers), dilution, preparation (for flobins), storage, and dosification.

The Merrill-Crowe plant consists of a clarification cone, clarifiers, deoxygenation towers, a zinc cone, filter presses, and a sedimentation pond (for clarifier wash water). A refinery is also located onsite.