Mining in the Pomona area started in the 1860s. After the discovery of guano deposits, the British annexed a number of islands off the coast of south-western Africa. This action led adventurers and traders into the area. Two of these, Aaron de Pass and Captain John Spence, obtained mining rights from Chief David Christian along the coast between the shore and 15°50’ longitude. Together they established the Pomona Mining Company and unsuccessfully tried to extract copper, lead and silver. It later appeared they must have shoveled the diamonds away to get access to the ore deposits. After the first diamond was found in April 1908 by August Stauch near Grasplatz station, a diamond rush was triggered in German South West Africa. As prospectors moved southwards, Stauch and Professor Robert Scheibe from the Royal Mining Academy of Berlin discovered rich alluvial deposits in this area, leading to the establishment of a mining settlement which was originally called Pomonapforte, as it was placed at the entrance point to several valleys, all of which have been named after the two prospectors and their immediate families: Idatal, after Stauch's wife Ida, Barbaratal and Mariannental, after Stauch's daughters, Stauchlager, and Scheibetal. The older mining rights held by the Pomona Mining Company were both a blessing and a curse. The German Government of the time protected the area only six months after the diamond discoveries, declaring the Sperrgebiet, a gigantic strip of land100 km wide, and ranging from 45 km north of Lüderitz all the way to the Oranje. The mining rights for this area reverted to Deutsche Diamantengesellschaft but excluded existing claims and the older rights of de Pass and Spence. Therefore, the Pomona area was the only place to set up new claims, and after extensive legal struggle official diamond mining started in 1912 under the auspices of the Pomona Diamanten Gesellschaft. This mine soon extracted an average of per month. The First World War ended all individual mining activities; South Africa soon defeatedGermany on South West African terrain and took over the Sperrgebiet. De Beers became the owner of the mines; it kept control of the area until the 1990s, when the Namibian government purchased a fifty percent stake, forming a joint partnership called the Namdeb Diamond Corporation.
