Although there were salmon-yielding streams in Oregon, the Boise and Weiser rivers were richer in these fish, and salmon could be caught on the Boise River upstream to its headwaters. During the spring and fall salmon runs, many Northern Paiute evidently crossed the Snake River and fished in the Boise and Weiser. Relations seem to have been friendly, and there was considerable intermarriage. Many Paiute evidently wintered in this area and could therefore be said to be as regular residents as the Shoshone. They maintained separate winter villages and tended to remain along the downstream stretches of the Boise and Weiser rivers. Informants disagreed on the extent of this interpenetration. Some characterized the population, especially of the Weiser Valley, as "mixed," while others said that only a very few Northern Paiute remained through the winter. More reliable and older informants characterized the population as mostly Shoshone. One old woman, a present resident of Duck Valley Reservation, identified herself as a Northern Paiute from the Weiser country. Her conversation, however, immediately revealed that she was actually speaking in the Shoshone language and that this was her first language. This attempted deception is partially explained by the somewhat greater prestige enjoyed by the Northern Paiute on that reservation.
As has been mentioned, the composition of the population of this region is further confused by the fact that some camp groups of Bannock passed by the more commonly used fishing sites below Shoshone Falls and fished on the Boise and Weiser rivers. An added inducement to the Bannock was the possibility of trade with the Nez Percé Indians in the upper valley of the Weiser River. The Bannock did not stay long in the area, however, and never wintered there.
The Boise-Weiser country is relatively rich. The streams gave a good yield of fish, roots abounded in the valleys, and game was found in the near-by mountains. The floors of the valleys are well below 3,000 feet, and winters are comparatively mild. Although the Shoshone residents of the area wandered far on occasion, a full subsistence could be obtained within the immediate area. Stretches of mountainous and barren lands tended to mark off this population from other Shoshone to the east. The testimony of informants is somewhat contradictory to Steward's statement (1938, p. 172) that the Boise-Weiser Shoshone "imperceptibly merged with the Agaidüka of the Snake River and the Tukadüka of the mountains to the north." It is true that there were no concepts of territorial boundaries and that the above-mentioned populations interacted, interchanged, and interpenetrated, but the locus of movement of each of the above three populations, especially their wintering places, did differ.
While Steward reports that the rubric "Yahandüka," or "Groundhog Eaters," was applied to the residents of the Boise-Weiser areas, we were unable to obtain this name. Yahandika was variously reported by Fort Hall informants as referring to a district in Nevada; by others as applied to certain Oregon Northern Paiute. Another informant said that it was an alternate term for the Shoshone of the middle Snake River, who are more generally called "Summer Salmon Eaters." The latter, stated this informant, had very close relations with the Boise population. All of the informants were probably right in a sense; only the uncertainty of these appellations is indicated.
Steward obtained "Su:woki" as the name of the Boise-Weiser country. My informants applied this name to the people of the region also, who were called "Söhuwawki," or "Row of Willows." The place name had evidently been transferred to the people or, more accurately, the place name was applied to whatever people used the locale. The name was especially used to denote the people and country of the Weiser River, although one informant thought the name covered the Boise people also. Another name given to the Weiser Shoshone was "Woviagaidika," or "Driftwood Salmon Eaters." This name is derived from the salmon's habit of lying under the driftwood in small streams. Only one informant reported a name for the dwellers of the Boise Valley, "Pa avi."
Informants sometimes spoke of the Boise-Weiser Shoshone as being "just one bunch." Certainly the populations of this section of Idaho merged, shifted, and interacted to such an extent that it would be difficult to distinguish them, although "one bunch," two chiefs, Captain Jim and Eagle Eye, were reported for the area. The former was said to be chief of those who usually wintered in the vicinity of Boise; the latter was chief of the winter residents of the Weiser valley. No clear delineation of the functions of these chiefs could be obtained.
The actual nature of Boise-Weiser Shoshone society can be understood better from their subsistence patterns. Winter was spent in small camps scattered along the valleys of the streams. There was little danger from hostile intruders, and camp grounds were not the larger population nuclei that we find in the Fort Hall area. Favorite winter camp sites were at the present site of the city of Boise, near present-day Emmett on the Payette River, and on the lower Weiser River, near the mouth of Crane Creek. Some families were said to have wintered on both sides of the near-by Snake River. While it was common for the same families to form winter camp groups, there was considerable shifting and changing each year, dictated by personal preference. Also, it was not necessary for the camps to spend every winter in the same place, and changes occurred constantly.
Winter was spent by their caches of roots and salmon; the dried and jerked game meat was said to have been kept in the lodge. The common type of winter dwelling was a sort of tipi made of rye grass. Stored food supplied the main subsistence during the winter, but sagehens, blue grouse, and snowshoe rabbits were also taken. Antelope were chased on horses (probably by the surround method), and deer frequently came down from the mountains and were killed while floundering in deep snow.
Springtime brought no extensive migrations. Some roots were available in the area, but the chief source of springtime subsistence was the salmon run, which began in approximately March or April. A second run followed immediately upon the first and continued until the end of spring. Fish traps were made on the Payette River, in the vicinity of Long Valley, and on the lower Weiser River. Salmon were also taken in the Boise River. According to informants, the people of this area did not resort to the great salmon fisheries in the vicinity of Glenn's Ferry and upstream to Shoshone Falls. The abundance of fish in local waters made this unnecessary. Although the population divided and went to various fishing sites, the salmon runs were periods during which stable residence in small villages was possible.
At the end of spring and in early summer, many of the Indians of the Boise-Weiser country traveled to Camas Prairie, where roots of various kinds were dug. These people stayed there through part of the summer, and during this time roots were collected and dried. This was also a time of dances and festivities, for a large part of the Shoshone and Bannock population of Idaho, plus a sprinkling of the Nez Percé and Flathead, resorted at the same time to these root grounds. These were probably the largest gatherings of people among all the Shoshone. There was no large, single encampment, but families and camp groups were in such close contiguity that social interaction was intense.