PRINCIPAL FACTS FOR GRAVITY STATIONS IN THE BIG SNOWIES WILDERNESS AND CONTIGUOUS RARE II STUDY AREAS, FERGUS, GOLDEN VALLEY, AND WHEATLAND COUNTIES, MONTANA = FAITS MARQUANTS DES STATIONS GRAVIMETRIQUES DU DESERT BIG SNOWIES ET DES REGIONS VOISINES RARE II, FERGUS, COMTE GOLDEN VALLEY ET COMTE WHEATLAND, MONTANALONG CARL L.1981; OPEN-FILE REP. (U. S. GEOL. SURV. 1978); ISSN 0196-1497; USA; DA. 1981; NO 81-0151; 12; ILL.Serial Issue

AEROMAGNETIC MAP OF THE BIG SNOWIES WILDERNESS AND CONTIGUOUS RARE II STUDY AREAS, FERGUS, GOLDEN VALLEY, AND WHEATLAND COUNTIES, MONTANA = CARTE AEROMAGNETIQUE DES BIG SNOWIES WILDERNESS ET DES REGIONS VOISINES RARE II, FERGUS, COMTES GOLDEN VALLEY ET WHEATLAND, MONTANALONG CARL L.1981; ; USA; DA. 1981; 1 SHEET;[U. S. GEOL. SURV., MISC. FIELD STUD. MAP; MF-1243-B]Serial Issue

COMPLETE BOUGUER GRAVITY MAP OF THE BIG SNOWIES WILDERNESS AND CONTIGUOUS RARE II STUDY AREAS, FERGUS, GOLDEN VALLEY, AND WHEATLAND COUNTIES, MONTANA = CARTE GRAVIMETRIQUE BOUGUER COMPLETE DE BIG SNOWIES WILDERNESS ET DES REGIONS VOISINES RARE II, FERGUS, COMTES GOLDEN VALLEY ET WHEATLAND, MONTANALONG CARL L.1981; ; USA; DA. 1981; 1 SHEET;[U. S. GEOL. SURV., MISC. FIELD STUD. MAP; MF-1243-C]Serial Issue