Trefolg

Trefolg was a Federation planet located near the Romulan Neutral Zone.

Trefolg was one of the Federation's closest colonies to the Neutral Zone. It was equipped with high-powered subspace radio equipment to account for its distance from Federation support. Trefolg's governor in 2269 was Lerak Kepac, around which time the colony was suffering from a deficiency in refined, alloyed metal.

Also in 2269, members of the United Expansionist Party acquired a starship on Trefolg and planned an incursion into the Neutral Zone to spark a conflict between the United Federation of Planets and the Romulan Star Empire. The conspirators were captured by colonial authorities and transferred to Starfleet custody aboard the USS Enterprise. (TOS novel: The Trellisane Confrontation)

planets visited by the USS Enterprise (NCC-1701) during Captain Kirk's initial five-year mission (2265-2270)
various	Capory • Cygnet IV • Garrus • Rheel • Triangularis III
2265	Earth • Yko • Draxis II • Tally • Karabos II • Gamma Alpha V • Pollux II • Starbase 8 planet • Sector Vega 6 planet • M-155 • Archernar IV • Dimorus • Mandylion V • Tendar IV • Mestiko • Alpha Ortelina VII • Arronus VII • Aldebaran III • Delta Vega I • Starbase 12 • Vellurius • Earth • Globular planet • Norus • Junkyard planet • Palnak's planet • Santar • Nova XIII • Zeltok • Korak • the Traveler's homeworld • Dukar • Orthoo • Algenib II
2266	Crucial-3 • Vultra • Robots' planet • Angoma • Mantis planet • Nuofo • Stai • Vrex • Balant planet • Galaxy T-21 planet • Zargot • Coltac • Rigel XII • Alfa 177 • M-113 • Psi 2000 • Tlaoli IV • Skur • Selkye • Taragon • Alpha 332 • Ynobe II • Ecnal • Raylo • Noriga • Alpha Proxima II • Kynardi • Argylus • Ominnus • Earth • K-G • Nekros • Seggor • Fornia • Angira • Beta II • Neesan • Kujal • Razlak • Luna • Bwuja • Fayo • Hercula • Earth • Kibo/Ndora • Nraka • Sacro • Alpha 23-C • Oordon • Mobita • Jodarr • Quodar • Zarta • Floe I • Metamorpha • Inicrust • Morti • Terrellian II • Voodoo planet • Riza homeworld • Mila Xa • Krugar III remnant • Quaraxus • Arima • Mazda • Numero Uno • Beta Carinae • Exo III • 1324-IV • 7348-II • Tantalus V • Miri's homeworld • Planet Q • Benecia • Zorat planet
2267	Taurus II • Makus III • Ximega II • Hydra Epsilon III • Perseus Arm planetoid • Yko • Tenkara • Salvum • Grotus • Varanu planet • Yko • Talos IV • Tekton • Rifas-L • Amusement Park planet • Heitius VII • Planet of Fire • Ice Planet • Centaurus V • Fomalhaut V • Emben III • Cynur IV • Tyrtaeus II • Gothos • Beta VI • Theta VII • Ramedes III • Cestus III • Metron planet • Alva • Lazarus's planet • Galaxy Zekbran planet • Cygnet XIV • Earth • Canara • Beta III • Draqqana • Iach'tu Prime • Eminiar VII • Ceti Alpha V • Gamma 400 • Vartax • Dak-Alpha • Thark • Morkol • Timshel • Omicron • Omicron Ceti III • Janus VI • 7348-II • Chandra IV • Organia • Angrena • Yko • Earth Colony II • Gateway • Earth • Deneva • Janvar • Zentar • Zettin • Winged Dreamers' planet • "the Frontier" • Modala • Lado • Gamma Xaridian • Elsinor H-25 • Starbase 10 planet • Beta Mariotia III • Vega III • Tondus • Tekkor • Carnak • Pyris VII • Earth • Pentam V • Gamma Canaris N • Vandros VII • Nukolee • Styra • Lurota • Oorego IV • Giant Brain asteroid • Otari II • Gateway • Isis III • Not Eden • Maaba S'Ja • Capella IV • Pollux IV • Vulcan • Mestiko • CJ-884 planet • Nador • Tactis II • Beta Nirobi II • Phygma IV • Outpost Omega-70 • Tau Gamma IV • M-370 • Argelius II • Merope IV • Malur • Eulus • Donico II • Gamma Trianguli VI • Tyrtaeus II • Halka • Ixtolde • Gamma Hydra IV • Levinius V • Calydon • Starbase 10 planet • Turan Tot Narut's planet • Gamma Canaris N • Taunus • Planet 656 • Beton III • Sklurr • Karr • Graktan • Plixes • Andrius • Deneva • Mudd • Earth • Aneher II • Wezonvu • Nalaing • Magna Roma • Bavarya • Neolithia • Mythra • Rimillia • Babel • Gamma Canaris N • Vulcan • Nisus • Certax • Narnel's World • NGC 667 • Neural
2268	Fornax II • Gamma II • Triskelion • Rudimon • Argus X • Tycho IV • Theta VII • Centaurus • Usilde • Signi Beta • Tautee system • Prometheus IV • Syngreal • Glisten IV • Billybob • Gamma Hydra Gamma • Milo • Thrint • Throckmorton • Urf Durfal • Orgone • Vulcan • Beta Canzandia III • Alpha Maluria VI • Rariar III • Karxen V • Dekian II • Mevinna • Sigma Iotia II • Xanvia • Xoxxa • Inquisitor planet • Beta Reticuli • Delta Vega • Nalogen IV • Delta Vega • Delta Canaris IV • Alnath II • Ammdon • Arret • Mu Arigulon V • Ekos • Eeiauo • Sivao • Aprilia III • Kahless • Omega IV • Earth • Theta Kiokis II • Elas • Troyius • Elethia • Alsand • Kos • Tau Delta IX • Kroy's planet • Amerind • Starbase 14 planet • Andru 4/6 • Tranquility VII • Midos V • Earth • Exo III • T'nufo • Midos V • Eando 375 • Starbase 10 planet • Wrigley's Pleasure Planet • Exo III • Tortuga VI • Taos IV • Triacus • Marcos XII • Wokkle III • Cawley IV • Makon III • Kala • Lowaria • Dreamers' planet • Sigma Draconis VI • Direidi • Medusa • Iolos VI • Giermos • Persis Nova • Midgwis • Minara II • Gamma VI • Octavius IV • Beta Cabrini IV • Pegasus IV • Careta IV • Beta XII-A • Platonius • Earth • Scalos • M-317 • Beta Aurigae III • Sanoora host planet • Rhinegelt • Kalandan outpost • Distrel • Prastor • York III • Tttnicktttnor • Ariannus • Cheron • Elba II • Sanctuary • Gideon • Kolya • Tau Omega IV • Tau Omega III • Tareel III
2269	Rontelm • Memory Alpha • Ardana • Merak II • Avalon • Pollux V • Beta Myamid VIII • Chameleon • Zamphor • Hrakkour IV • Scythe • Balkos III • Gothos • Onyius II • Nova Atar III • Masaba • Lekythos • Shroud IV • Sigma Iotia II • Tarnak II • Vesbius • Janus VI • Beta Niobe III • Tree of Life planetoid • Gamma Cygnet planetoid • Centaurus • Raga's Planet • Eden • Theta Tau V • Holberg 917G • Lothor • Tau Beta IV • Excalbia • Sarpeidon • Feudal planet • Camus II • Duwamish • Ephrata IV • Sigma Niobe II • Gateway • Krasni's Folly • Vestalan • Maltos IV • Organia • Kyros • Nesta • Anomaly • Academy • Yko • Arachnae • Babel • Epsilon Delta IV • Heartland • Gothos • Cherela • Starbase 8 planet • Syhaar Prime • The Strand • Aarak III • Phi XI • Ur homeworld • Viden • Gobi III • Pacifica • Dolysia • Gralafi • Loren V • Gelladorn/R-775 I • Dengella II • Lloyd Zeta IX • Sigma Iotia II • Hesperides I • Tombstone • Waycross • Perry's planet • Delta Gamma IV • Trefolg • Trellisane • Holox • Boaco VI • Juram V • Vancadia • Veletus V • Pollux II • Leora IV • Patria I • Memory Prime • Talin IV • I'Qos • Circe V • Gateway • Mantilles • Moauv • Pomplance • Ribol II • Marpaplu • Valeria • Taurus II • Kinshasa
2270	Janus VI • Phylos II • Amusement Park planet • Motherlode • Rock creature planet • Darius IV • Megas-Tu • Terratin • Verdanis • Sherman's Planet • Argo • Deneb V • Vedala asteroid • Dramia • Dramia II • Arret • Lactra VII • Boqu II • Delta Theta III • Pandro • Dengella II • Briamos • Finder's planet • Procrustean planet • Yko • Belarius IV • DT-262 • Kwettir • Waasertla • Mygdalus III • Artemys 314 • Velat Nol/R-836 II • Pillagra (R-855 III) • Polymax VIII • Cenotaph • Emilla II • Vehtora IV • Anabarra colony • Hollow Planet • N'cai • Muldoon • Coridan III • Akladi • Mudd • Kuban • Sarai • CJ-884 planet • Stella Mudd's planet • Mudd • Taygeta V • Okeanos • Beta Omicron Delta III • Zeta Gibraltar • Yoondri • Earth (alternate) • Vrotii outpost planet • Sycorax • Baldur III • Bira III • Njura • Omne's planet • Voran • Razar • Mercan • Starbase 9 planet • Yalbo • Aritani • Vulcan • Hoshan planets • Tanis • Starbase 9 planet • Aragos planet • Aleph Prime • Aleph III • Antos IV • Takoi homeworld • Jinks' planet • Gateway • Andros • Yusub • Earth • Denebia • Veneu II • Gribbin II • Klondike VI • Isitra Zero • Gateway • Aleriad • Andoria • Proxima Centauri • Vulcan • Earth • Pelos • Talos IV • Gateway • Earth • Starbase 12 • Tomarii

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