64 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1958 
the season prevented the party from doing extensive site mapping or 
reconnaissance in the area, but several of the larger sites were visited 
and surface collections were made. A site map and exploratory tests 
were made at 389AR8, which appears to be related to the Huff site 
in North Dakota. Six other large sites were located and recorded 
for the first time in this area. The party disbanded on September 
16, after 2 weeks in the Oahe Reservoir area. 
The 1958 field season in the Missouri Basin began in the Big Bend 
Reservoir area on May 11 with a small party exploring in the vicinity 
of the Medicine Crow site (89BF2). William N. Irving with a crew 
of three and Mrs. Kathryn H. Clisby, pollen specialist from Oberlin 
College, Ohio, collected samples of fossil pollen from various local- 
ities in the area. Upon Mrs. Clisby’s departure, Irving and his crew 
prepared a detailed map of the Medicine Crow site. On June 10 
he increased his party to eight crewmen and added an assistant 
trained in geology to work with him on stratigraphic terrace sequences 
relating to the geology of the site and its immediate vicinity. They 
located one new site containing a large mammalian fossil in a terrace 
fill deposit and another site with columnar fire hearths exposed in 
a cut bank of the river. Intensive excavations continued in area B 
at the Medicine Crow site, and by the end of the year were progress- 
ing through the upper 3 feet of the preceramic zones. 
On May 19, the second River Basin Surveys field party began op- 
erations in the Big Bend Reservoir area. This was a party of 10 
under the direction of Robert W. Neuman excavating at two sites 
near Old Fort Thompson on the left bank of the Missouri River. 
Part of this crew continued work begun last season in the Akichita 
site (89BF221) in an attempt to learn details of architectural fea- 
tures. Extensive trenching had failed to find any traces of a house 
structure by the end of the year, although much midden refuse added 
significantly to the specimen inventory. The second section of the 
crew continued work begun last season at the Truman Mound site 
(89BF224). In that mound group, Mounds 5 and 6 were excavated 
during June, thus completing work at the site. In both mounds sec- 
ondary burials accompanied by shell, disk, and bone beads were found. 
Beneath Mound 6, several projectile points, bone beads, and other 
artifacts were found. This party planned to concentrate the re- 
mainder of the field season on the several other mound sites in the 
immediate vicinity. 
The third River Basin Surveys party in the Big Bend Reservoir 
area in June consisted of a crew of seven led by James J. F. Deetz. 
It began work on June 10 and spent the remainder of the month in 
excavations in areas A and C of the Medicine Crow site (839BF2). 
Midden areas were trenched, and one circular earth lodge was exca- 
vated. This lodge was actually two closely superimposed structures. 
