What is the fine-grained topic of the following text: Directions to Refuge Headquarters: From I-24, Exit 25- I-69/Purchase Parkway south; to Exit 43- Benton/Symsonia turn east towards Benton; left on Hwy US 641 North (3rd stoplight); Clarks River NWR is ~1 mile on left on Hwy 641. Only return the topic.
Directions to Clarks River National Wildlife Refuge Headquarters