These have been documented as well and will form the basis of some of the Business Requirements documented in the Requirements Development Plan and Requirements Traceability Matrix. See the complete Process Inventory and Prioritization Template and the Business Process Description Template for details.
Salar de Uyuni (or Salar de Tunupa) is the world's largest salt flat at 10,582 square kilometers (4,086 sq mi). It is in the Daniel Campos Province in PotosÃ­ in southwest Bolivia, near the crest of the Andes and is at an elevation of 3,656 meters (11,995 ft) above sea level.
I doubt the Hull Rust mine is the largest open pit mine in the world, as it can't be much larger than 25 square km (being 8km long and just over 3km wide). The lignite open pit mines in Germany are larger. Garzweiler is currently about 48 square km, and Hambach is 33 square km.