Siouan languages
Siouan or Siouan–Catawban is a language family of North America that is located primarily in the Great Plains, Ohio and Mississippi valleys and southeastern North America with a few other languages in the east.
Surigaonon language
Surigaonon is a Visayan language. It has been heavily influenced by Cebuano due to the influx of many Cebuanos in the region. However, most Cebuano speakers can hardly understand Surigaonon speakers, except for Cebuanos who has been living in the region for years.