This report covers two collections from the foothills belt in the southern part of the Killik River quadrangle. Both are of early Mississippian age and indicate that the strata from which they came are possibly assignable to the Noatak Sandstone or a related marine clastic facies. Collection 82AKy45D (USGS 28836-PC) is a ferruginous marine sandstone of typical Noatak facies that contains a rhynchonellid-dominated assemblage and fragments of plant stems. This assemblage occurs in the mountains to the south (Killik River quad. and northern Survey Pass quad.) in rocks that are interpreted as very nearshore, possibly intertidal, environments. Collection 82AKy45₁ (USGS 28837-PC) is an echinodermal, sandy limestone that reflects a probable shallow subtidal environment and contains elements of a more normal invertebrate assemblage. This could indicate either a slight facies difference or a slight age difference. Because the two assemblages contain no species in common, I am unable to resolve age difference at this time.