Iowa DNR plans to stock Heritage Pond in Dubuque with 1,000 to 2,000 rainbow trout next week on Wednesday at 3 pm. A release states that children age 15 or younger can fish for trout when accompanied by an adult with a fishing license who has paid the trout fee but must limit their catch to one per day. The state’s stocking program is funded by the sales of a trout fee. An annual fishing license is $22 for residents and $48 for nonresidents.Â