We must evaluate the statements of the informants involved before reaching a decision on this point. Nomland's Bear River informant was evidently not particularly accurate on boundaries, for she placed the northern boundary of the Bear River group at Fleener Creek when it was almost certainly at Bear River Ridge (see p. [163]). Therefore her testimony may be questioned on the present point also. Nomland's Sinkyone informants were from the Shelter Cove Sinkyone of the Briceland area to the south, and furthermore only one of them was said to be reliable. Merriam, however, presents detailed evidence in the form of place names obtained from George Burt, a very good informant who was born and raised among the northern Sinkyone at Bull Creek. I have therefore accepted the evidence of George Burt via Merriam, even though several of Nomland's informants deny it.
Actually, I have accepted Merriam's line as far south as Phillipsville on the South Fork of the Eel, even though it conflicts somewhat with the lines of Nomland and Kroeber. Merriam's information for this stretch of South Fork is supported in detail by Goddard's village lists. South of Phillipsville, Merriam's line runs along South Fork itself instead of lying slightly east of it. This line is contradicted by Goddard, whose informant, a native of the region, gave Goddard village names on both sides of the river as far south as Garberville. I have accepted the line indicated by Goddard's information along this stretch.
South of Garberville I have relied heavily on Nomland. She had three informants from the Shelter Cove Sinkyone—Sally Bell, Tom Bell, and Jack Woodman, of whom she considered only the last reliable. Merriam seems to have relied entirely on Sally Bell for information about this group and his information should therefore be somewhat discounted.
The Bear River-Mattole boundary is not disputed. Merriam and Nomland agree that it begins on the coast at Davis Creek and then follows the ridge east to the headwaters of Bear River. The two authors do not agree on the Bear River-Sinkyone line. Nomland's boundary goes due east from Bear River headwaters to strike the South Fork of the Eel a few miles above its mouth. Merriam's line instead goes north to intercept the main Eel at Scotia. I have accepted Merriam's version on the basis of George Burt's evidence, even though Kroeber agrees with Nomland.
The Mattole-Sinkyone boundary begins at Spanish Flat on the coast and goes northeast from there, crossing the Mattole River just above the mouth of Upper North Fork, Mattole River, and continuing in that direction to the headwaters of the Bear River. I have altered Merriam's map on this point. It shows the Mattole-Sinkyone line reaching the coast at Big Flat, a point about six miles down the coast from Spanish Flat. Merriam's notes say, however, that the line ends at Spanish Flat. Merriam's line crosses the Mattole River near the town of Upper Mattole about five miles below the mouth of Upper North Fork, but Goddard's Mattole informant gave him villages as far up as the mouth of Upper North Fork and I have considered this fact to be decisive. Nomland's Mattole-Sinkyone line reaches the coast at Four Mile Creek, about five miles up the coast from Merriam's line at Spanish Flat. This line of Nomland's is probably a tribelet boundary, which Merriam and Goddard give as occurring at about that point (see Mattole Tribelets). Otherwise Nomland's boundary agrees with that of Merriam.
Merriam's line dividing the northern or Lolangkok Sinkyone from the southern or Shelter Cove Sinkyone begins in the east on South Fork Eel about a mile or two above the mouth of Salmon Creek, runs west from there through Kings Peak, and crosses the Mattole River just north of Ettersberg, intersecting the Mattole line a few miles from the coast. This line as given is the same as Merriam's, except that his begins in the east at Redwood Creek instead of at Salmon Creek. The change here is based on Goddard's village list, which indicates the present line.
The Lassik-Nongatl line begins in the east just below Ruth on the Mad River. It goes west from there around the headwaters of the Van Duzen River until it crosses the Eel at the mouth of Dobbyn Creek and thence west to the Sinkyone line. Kroeber and Merriam agree on the eastern part of this line but Essene disagrees with them, including a much larger portion of the drainage of the Mad and Van Duzen rivers in Lassik territory. I am at a loss to explain this version, since Essene's informant from the Lassik was the same one consulted by Merriam. It is not clear that Essene's boundaries were obtained from his informants, and this fact may explain the discrepancy. I have accepted the Kroeber-Merriam line here. To the west of this, Kroeber's line, instead of crossing the Eel, follows the river toward the northwest, so none of the main Eel River valley falls in Nongatl territory. Goddard gives villages on the main Eel which are said to be allied with others in the Blocksburg region, so the Nongatl must have claimed at least a small section of the Eel. I have therefore accepted the Merriam version.
The Wailaki-Lassik boundary begins in the east at the head of the Mad River and runs west to the North Fork of the Eel, which it crosses at the mouth of Salt Creek. It follows Salt Creek for a short way and then goes west to Kekawaka Creek, which it follows to its mouth on the main Eel. It crosses the Eel here and then goes west to intersect the Sinkyone boundary at the East Branch of the South Fork of the Eel. The boundary as given here is identical with the one given by Merriam, except that he includes part of the drainage of the Mad within Wailaki territory whereas Kroeber does not. I have accepted Kroeber's version, because it is supported in a negative way by Goddard (1924), who fails to include any Mad River drainage in Pitch Wailaki territory.
West of this area, Kroeber's boundary runs considerably north of Merriam's and of the boundary I have accepted. Merriam's line seems preferable because it is supported by Goddard and because Merriam's information is more specific than Kroeber's.
According to the information of Merriam and Goddard, the Wailaki may be divided into three groups—the Eel River Wailaki, the North Fork Wailaki, and the Pitch Wailaki. The eastern group, the Pitch Wailaki, occupy the drainage of North Fork Eel River above Asbill Creek, Hulls Creek, and Casoose Creek. Their western boundary begins in the north on Salt Creek near its confluence with North Fork Eel. It runs south from this point along Salt Creek and beyond it, crossing the North Fork of the Eel just above the mouth of Asbill Creek and intersecting the Yuki-Wailaki line near Summit Valley. The northern border of the North Fork Wailaki begins in the west on the main Eel River at the mouth of Cottonwood Creek, about three miles north of the mouth of North Fork Eel, and runs from there eastward for about six miles, where it hits the western boundary of the Pitch Wailaki. The western boundary of the North Fork Wailaki is the main Eel River from the mouth of Cottonwood Creek south to the Yuki line near Bell Springs Railroad Station.