The Berkeley-Illinois-Maryland Association (BIMA) was a collaboration of the Universities of California, Illinois, and Maryland that built and operated the eponymously named BIMA radio telescope array. Originally (1986) the premier imaging instrument in the world at millimeter wavelengths, the array was located at the UCB Hat Creek Observatory. In early 2005 nine of its ten antennas were moved to the Inyo Mountains

Inyo Mountains

The Inyo Mountains are a short mountain range east of the Sierra Nevada mountains in eastern California in the United States. The range separates the Owens Valley to the west with Saline Valley to the east, extending for approximately 70 mi SSE from the southern end of the White Mountains,...

 and combined with antennas from the Caltech Owens Valley Radio Observatory

Owens Valley Radio Observatory

The Owens Valley Radio Observatory is a radio observatory located near Bishop, California, within the Owens Valley, California region, approximately 250 miles north of Los Angeles on the east side of the Sierra Nevada. It is owned and operated by the California Institute of Technology. For...

 and eight telescopes operating at a wavelength of 3.5 millimeters from the University of Chicago

University of Chicago

The University of Chicago is a private research university in Chicago, Illinois, USA. It was founded by the American Baptist Education Society with a donation from oil magnate and philanthropist John D. Rockefeller and incorporated in 1890...

 Sunyaev-Zel'dovich Array

Sunyaev-Zel'dovich Array

The Sunyaev–Zel'dovich Array in California is an array of eight 3.5 meter telescopes that is now operating as part of the Combined Array for Research in Millimeter-wave Astronomy . Its initial goals were to survey the Cosmic Microwave Background in order to measure its fine-scale anisotropies...

 (SZA), to form CARMA

Combined Array for Research in Millimeter-wave Astronomy

The Combined Array for Research in Millimeter-wave Astronomy is an astronomical instrument comprising 23 radio telescopes. These telescopes form an astronomical interferometer where all the signals are combined in a purpose-built computer to produce high-resolution astronomical images.- Location...

, currently the largest millimeter array in the world for radio astronomy.