The name Churn is ancient, certainly pre-Roman, and probably has its origins in the Celtic language spoken by the Dobunni tribe who controlled the area before the Roman conquest in the 1st Century CE. The original name may have sounded similar to Korinn.
Cognate names and name elements from the area are Cerney, Ciren and Corin as found in the villages of North Cerney, South Cerney, and Cerney Wick, modern Cirencester, and the Roman town name Corinium. All these places are on or close to the River Churn.
The scenery is rural and pleasant; the course of the river winding.
The river then follows a valley confined between the hills on either side of Oxford, passes the pleasant woods of Nuneham, and at Abingdon (1032) receives the Ock from the Vale of White Horse.
Although the Thames, as one of the "great rivers of England," was always a navigable river, that is to say, one over which the public had the right of navigation, it was not until the last quarter of the 18th century that any systematic regulation of its flow in the upper reaches was attempted.
Churn Creek is an especially important area to protect because in addition to supporting the bunchgrass ecosystem, it also is home to a variety of other habitats including shrub-steppes, wetlands, kettle lakes, and dry open forests.
The Churn Creek Valleys are also the connecting migration corridor used by sheep and deer to reach their summer range in the Spruce Lake and Big Creek areas of the South Chilcotin Mountains.
Churn Creek was identified by Parks Canada in their assessment of high priority conservation opportunities because it features the highest calibre winter wildlife range in the Central Interior, especially for California Bighorn sheep and deer.