Probe Launch Complex C or PLC-C at the Vandenberg Air Force Base in California, United States, is a launch complex which was used for six sounding rocket launches between 1971 and 1975. It was originally built as Launch Complex C or LC-C at the Point Arguello Naval Air Station, however no launches were made from the site whilst it was part of Point Arguello. Following the merger of Point Arguello into Vandenberg AFB in 1964, it was briefly designated PALC-C, and subsequently Probe Launch Complex C.