Are you sure Tumblingwings, I always thought that too but according to:
Utah Code R657-9-10. Nontoxic Shot
1) Only nontoxic shot may be in possession or used while hunting waterfowl and coot.
(2) A person may not possess or use lead shot:
(a) while hunting waterfowl or coot in any area of the state;
(b) on federal refuges;
(c) on the following waterfowl management areas: Bicknell Bottoms, Blue Lake, Brown's Park, Clear Lake, Desert Lake, Farmington Bay, Harold S. Crane, Howard Slough, Locomotive Springs, Manti Meadow, Mills Meadows, Ogden Bay, Powell Slough, Public Shooting Grounds, Salt Creek, Stewart Lake, Timpie Springs; or
(d) on the Scott M. Matheson wetland preserve.
So according to this unless you are hunting waterfowl, then you can use lead on all WMA areas except the one's listed above. Anyone else have any other info on this ?