The Hawkins National Laboratory, connected to the U.S Department of Energy, is located in Hawkins county, Indiana. It is a Federal complex most likely controlled by the CIA or NSA.
The Laboratory contains a large amount of security as it is surrounded by a barbed wire fence and guarded by Military Police. It is composed of one multi-story building which leads down to an underground complex. It is in a secluded area within the county's forest with only a single road leading to it.
It is also the location of the Portal, and where Eleven spent all her life. Here, psychological experiments were conducted upon her to exploit the telekinesis powers that she was born with. While the initial purpose of this was to spy on the Russians, contact with inter-dimensional beings were made instead. However, this lead to the accidental release of the monster that captured Will and Barbara.