River Hills Custom Harvesting, LLC Custom Harvesting Contact Information Phone: (307) 388-4414 Address: 651 State Hwy 31, Manderson, Wyoming 82432 Get Directions About River Hills Custom Harvesting, LLC is a custom harvesting service located in Manderson, WY. Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API. Claim Listing Recently Viewed: Loading...