Noche Buena is an open pit gold mine which developed by conventional truck and shovel method with preliminary drilling and blasting operations. DM 45 Drilling machines are utilized for drilling blast holes, Cat 992 wheel loaders and Cat 390 Excavators for loading ore and waste to Cat 777 and Cat 775 haulage trucks.

Processing facilities consist of 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.