Argus X

Argus X is a Class M planet that was uninhabited until a rich vein of tritanium ore was discovered there in 2268. The last planet of the Argus System, Argus X was first surveyed by the USS Enterprise. Shortly after discovering the tritanium, the crew came across a dikironium cloud creature which attacked the away team. Ultimately, the creature was tracked and killed on Tycho IV.

A few months after the Enterprise left, the USS Gallup brought a full scientific team and a detachment of the Starfleet Corps of Engineers to do a full planetary study. In 2273, the Ingram Mineral Company secured mineral rights to the site. Soon a small outpost was established on the planet.

During the Second Federation-Klingon War, a group of Klingon commandos raided the mines and destroyed about half of the production base. In response, Starfleet placed a reinforced Marine detachment on Argus X. A year later (2374), when the Dominion attempted to destroy the mines, they were surprised to encounter such resistance and were soundly driven off.