Question: Murillo Family Observatory is located in what county?

Context paragraphs:
San Bernardino, California: San Bernardino is a city located in the Riverside-San Bernardino metropolitan area (sometimes called the "Inland Empire").  It serves as the county seat of San Bernardino County, California, United States.  As one of the Inland Empire's anchor cities, San Bernardino spans 81 sqmi on the floor of the San Bernardino Valley and has a population of 209,924 as of the 2010 census.  San Bernardino is the 17th-largest city in California and the 100th-largest city in the United States.  San Bernardino is home to numerous diplomatic missions for the Inland Empire, being one of four cities in California with numerous consulates (the other three being Los Angeles, San Diego and San Francisco).  The governments of Guatemala and Mexico have also established their consulates in the downtown area of the city.

Charles Smith Scott Memorial Observatory: Charles Smith Scott Memorial Observatory, also known as Park College Observatory, is a historic observatory located on the campus of Park University at Parkville, Platte County, Missouri.  It was built in 1896, and is a variation of the "T"-plan observatory building style constructed of ashlar limestone blocks.  It features an octagonal two-story domed tower.

Prince Edward Point Bird Observatory: The Prince Edward Point Bird Observatory is a bird observatory located in the Prince Edward Point National Wildlife Area, located on Prince Edward Point in the south-east corner of Prince Edward County, Ontario, Canada.  The National Wildlife Area was established in 1978 covering 560 hectares.  The observatory was established in 1995 to monitor bird migrations across the point, continuing the work of the Kingston Field Naturalists who performed similar work in the 1970s and 1980s.  The observatory was designated a Globally Important Birding Area in 1998 by the Canadian Nature Federation and Bird Studies Canada.  It is also an International Monarch Butterfly Reserve.

Lake Afton Public Observatory: Lake Afton Public Observatory (LAPO) is an astronomical observatory located southwest of Wichita, Kansas in a rural area of Sedgwick County on the north side of Lake Afton.  At the heart of the observatory is a 16 in Ritchey–Chrétien telescope.  The observatory offers programs for the public every weekend throughout the year along with various private, and school programs throughout the week.

McDonald Observatory: The McDonald Observatory is an astronomical observatory located near the unincorporated community of Fort Davis in Jeff Davis County, Texas, United States.  The facility is located on Mount Locke in the Davis Mountains of West Texas, with additional facilities on Mount Fowlkes, approximately 1.3 km to the northeast.  The observatory is part of the University of Texas at Austin.  It is an organized research unit of the College of Natural Sciences.

Williams Observatory: Craven E. Williams Observatory is an astronomical observatory owned and operated by Gardner-Webb University.  Built in 1990 and named for the ninth president of the university, it is located in Boiling Springs, North Carolina (USA).  Among its instruments, the observatory features a 16 in Schmidt-Cassegrain telescope.  The observatory is home to the Cleveland County Astronomical Society, and also holds monthly open houses for the community.  Dr. Don Olive, an astronomer, oft-alleged nuclear physicist, and professor of science at the university maintains and opens the observatory to the campus and community on occasion.

William Miller Sperry Observatory: The William Miller Sperry Observatory, also known simply as the Sperry Observatory, is an astronomical observatory owned by Union County College and operated by Amateur Astronomers, Incorporated.  The observatory is located on the property of Union County College on their Cranford, New Jersey campus.  It was named after William Miller Sperry and dedicated in 1967.

Yale University Observatory: The Yale University Observatory, also known as the Leitner Family Observatory and Planetarium, is an astronomical observatory owned and operated by Yale University, and maintained for student use.  It is located in Farnham Memorial Gardens near the corner of Edwards and Prospect Streets, New Haven, Connecticut.

Murillo Family Observatory: Murillo Family Observatory is a teaching and research observatory for California State University, San Bernardino, located on Badger Hill on the northern portion of campus, in San Bernardino, the U.S. state of California.  It is the newest research observatory in the Inland Empire and in the California State University system.

Killarney Provincial Park Observatory: The Killarney Provincial Park Observatory is a small observatory located in Killarney Provincial Park at the George Lake Campground (near Killarney, Ontario, Canada).  Opened on July 17, 2010, the site was chosen for its exceptionally dark skies (sky meter reading of 21.8 last recorded in 2012).  The observatory and telescope were donated by the Waters family to celebrate 25 consecutive years of astronomy lectures by Bruce Waters to over 5,000 park visitors.  It is the first public observatory running in any Ontario Provincial Park.

Supporting paragraphs: Murillo Family Observatory San Bernardino, California
Answer: San Bernardino County