Complex sentence: One of the first recorded Baconfests was established in Cache Valley in 1993 by a group called the Wetlanders, where less than a dozen people were in attendance, but many Baconfests today support crowds in the thousands.
Split into simpler sentences: One of the first recorded Baconfests was established in Cache Valley in 1993 by a group called the Wetlanders. There were less than a dozen people in attendance, but many Baconfests today have attendance in the thousands.