Hy-On-A Hill Trout Hatchery Claim Listing Return to Directory Rating (average) (0) Business Genre Farm, Misc Farms Business Website Address hyonahilltrout.com Business Address, City PO Box 308, Plainfield ZIP Code 03781 Business Phone Number 6036756267 Ratings There are no reviews yet. Please login to leave a review. Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?