174 BUREAU OF AMERICAN ETHNOLOGY [Buuy. 185 
The site, designated 82SN3 in the survey records, was next briefly 
examined by members of the Missouri Basin Project field party, under 
my supervision, at the end of May and in the latter part of June 1952. 
The specimen material acquired on these occasions at the original find- 
spot consisted, in toto, of 2 small rim sherds and 14 small body sherds, a 
broken chipped stone projectile point, and 2 unworked flakes. Some 
of the depressions were scrutinized, and they were again regarded as of 
equivocal origin. Considering the favorable geographic situation and 
the promising condition of the site—on a terrace lying immediately 
above the wooded flood plain of the river and below sheltering bluffs, 
in a tract of open tight sod which apparently had never been broken 
by the moldboard plow—and the prima-facie evidence that this was a 
pottery-bearing campsite, if not a semipermanent townsite of 
aboriginal provenience in an archeologically unknown locality, I was 
impelled to obtain permission from Oscar Hintz, the landowner, to 
test the site, and possibly excavate it in part, at the earliest opportunity. 
The Hintz site, named for its cooperative owner, lay somewhat 
above and below 1,424.3 ft. mean sea level, the elevation of our datum 
stake as determined by a Bureau of Reclamation survey party. Ac- 
cordingly, the site lay about 8 feet below the top of the conservation 
storage pool, and approximately 30 feet below the top of the flood 
control storage pool level, of the Jamestown Reservoir. The Hintz 
site was inundated the first or second spring after the dam was closed, 
early in 1954. 
EXcavaTION PROCEDURE 
Archeological excavations were made at the Hintz site sporadically 
between June 30 and September 26, 1952, and between June 9 and 
June 23,1954. A grid of 5-foot intervals, oriented on magnetic north, 
was imposed over the site, and six connected or separate excavation 
units of varying horizontal and vertical dimensions—designated XU1 
through XU4, XU16, and XU17—were opened at the north end of 
the site, in an area of about one-quarter acre (pl. 27). In addition, 19 
scattered test pits and test excavations—labeled XU5 through XU15, 
XU18, and XU19 through XU25—were put down at relatively low 
spots or at places marked by artifact materials, suggesting the possible 
existence of habitation remains, in an area comprising about 4 acres. 
All the excavation units except XU17 were worked out in 3-foot or 
5-foot columns and in blocks ranging from 0.15 to 1.0 foot in depth 
below the sod layer, which was stripped off to an average depth of 0.2 
foot and was disposed of before each column was dug. XU17, a 
subcircular excavation with a south-southeast extension, which lay 
east and west of XU4 (a north-south exploratory trench connecting 
XU2 and XU3), was excavated in four quadrants varying from 0.2 
