Space Station K-7

Space Station K-7 is a Starfleet outpost located on the edge of the Klingon Neutral Zone. It is one of the Federation's oldest space stations at 155 years as of 2413. Initially created as a minor refuelling and drydock hub, K-7 became one of the most important outposts during the various Klingon wars.

Timeline
2258 - Constructed

2268 - Infested with Tribbles

2340 - Abandoned by Starfleet

2401 - Refitted by Starfleet

2410 - Suffered a radiation leak leading to a complete evacuation