What is the cleanest river in Oklahoma?
What is the cleanest river in Oklahoma? Spring Creek is the most pristine large Ozark stream left in the state of Oklahoma, but it does have issues: increased levels of phosphorous and high E.
How deep is blue hole Oklahoma?
Divers have reportedly measured some spots as deep as 20 feet. But it's so freezing cold, between 50-60 degrees in the midst of summer, that you won't want to stay shoulder-deep for long. Fortunately there's much more to do than just swim. It's a great place to explore.