Providence

"What is this place?" "One of Fury' secret bases."

- Skye and Eric Koenig

The Providence is a top secret underground S.H.I.E.L.D. facility inside the Canadian wilderness. It is located in the Ontario Province and its geographic coordinate are 49°27'41.0"N 80°03'40.0"W

History
After the Battle of New York, S.H.I.E.L.D. Director Nick Fury established a secret underground base in Canada, whose existence was unknown even to S.H.I.E.L.D. He stationed Agent Eric Koenig there, allowing his only contact to be himself and Koenig's brother. While there, Agent Koenig named the place Providence.

Two years later, during the S.H.I.E.L.D. Civil War, an assassination attempt was made on Fury by the Winter Soldier and only a few were told that Fury survived.

Phil Coulson was given a set of coordinates which led to Providence and the revelation by Koenig that Fury was alive.

After Coulson learned of the escape of Marcus Daniels, he wanted to take some of his team from Providence to pursue him, but they had to be tested by the Lie Detector first. During the tests, Grant Ward barely passed. Melinda May left Providence because she felt Coulson did not trust her.

Later, when Ward would have been discovered as a HYDRA agent, he killed Koenig and hid him in a closet to be found by Skye.

After returning from Portland and finding half of the team was gone, Jemma Simmons decided to make pancakes to calm everyone. As she found Koenig's body in the closet, Leo Fitz noticed the message Skye had left, "WARD IS HYDRA!"

Glenn Talbot led a unit of United States Armed Forces soldiers into Providence after Maria Hill told him where it was to interrogate Coulson's Team.

With Hill's help, Coulson's team fled Providence and relocated in a hotel in Los Angeles.

Equipment
Providence has equipment that was specially designed by Nick Fury himself, including windows that change their "view" daily, and a high-tech Lie Detector. Guarding the facility is a cannon designed to fire upon high speed metallic objects and a password in which one must identify himself as an "agent of S.H.I.E.L.D." in order to enter.