Strangely, or not, the MHA at King Salmon's RANV (GPS) s 2,000'. Could there have been confusion on the IAF by either the crew or the ATCO or in the comm loop?
The Anchorage Center MIA is also 2,000 from King Salmon to fairly near PADL, where it becomes 4,000. Five west, or so, or PADL the MIA is 5,000.