Tarrlok's hideout

Tarrlok's hideout is a cabin located somewhere in the snowy mountains that surround Republic City. It was here that Tarrlok hid Avatar Korra.

History
After Tarrlok defeated Korra in a duel at City Hall, he placed her in the back of a police truck and drove the Avatar to his hideout hidden in the mountains surrounding Republic City. Tarrlok told Korra that this hideout was a place where no one would ever find her, and that she would never see Republic City again. Once they arrived there, the Councilman carefully used bloodbending to entrap Korra in a metal box that was inside the cabin. He then returned to City Hall.

Later, while searching for Korra in Republic City, Tenzin, Lin Beifong, and the rest of Team Avatar realized that it was Tarrlok who had kidnapped Korra, and they soon confronted the bloodbender at City Hall. Once Tarrlok's secret was out, he bloodbent his accusers and made a hasty retreat back to his cabin in the mountains.

While imprisoned in the hideout's cellar, Korra meditated and had visions of Aang, Sokka, and Toph at Yakone's trial, showing that he too possessed the bloodbending abilities that Tarrlok possessed. Korra eventually saw Aang use energybending to remove Yakone's bending.

Upon returning to his hideout and blaming Korra for ruining his life, Korra stated that she knew that he was Yakone's son. He then told her of how he had to recreate his identity in order to hide the ties between himself and his father. Tarrlok then told Korra that he would once again begin a new life, and that she was going to come with him as his prisoner. Just as the Councilman was preparing to leave, he was stopped by Amon alongside several Equalists, including the Lieutenant, who had shown up at the cabin. Tarrlok easily took out all of the Equalists with bloodbending except for Amon, who was able to resist Tarrlok's bending, albeit with some difficulty. Amon then quickly moved in and took away his bending, afterwards placing him the truck outside of the cabin. Meanwhile, the Lieutenant, along with various other Equalists, entered the building's basement, intending to capture the Avatar. The Lieutenant, acting on Amon's order, electrocuted the box, but due to some quick thinking, Korra was able to avoid being electrocuted. As soon as the Equalists opened the metal box, Korra unleashed a barrage of bending, and escaped outside. Once she escaped, the Avatar launched a number of large icicles at Amon, who then began to run towards her. Korra managed to escape by using her waterbending to snowboard down the mountainside, but ended up crashing. She was found by Naga soon after, and the two returned to Republic City.

Trivia

 * Apart from several parts of the Southern Water Tribe shown in "Welcome to Republic City", Tarrlok's hideout is the only location shown thus far outside of Republic City in The Legend of Korra.