It depends. In most of the state, there are no restrictions on the number of holes, but an ice angler can fish with up to five poles or lines at a time, and up to five hooks per line. A two-pole validation does not allow more than five lines while ice fishing. All lines must be attended by the angler. One exception is on Bear Lake, where a two-pole permit is required year around, for anglers to use two poles - even when ice fishing. Another exception is on Daniels, Springfield, Treasureton and Twenty-Four Mile trophy-trout reservoirs. On these trophy trout waters only one rod is allowed for ice fishing. Check fishing rules book for additional details.