12 SURVEY OF FISHING GROUNDS, 1915. 
TABLE 1.—Goop Hauinur Borroms In Grays HAarsor SECTION. 
Approxi- 
No.a Bearings. Distance. Character of bottom.) mate 
area. 
Miles. Sq. miles. 
1 WEA B: (S. 60° W.) from Umatilla 21 | G; crs bk §; crs and fne gy 8; R; gn 18 
ship. M. 
2 ESN e 22° W.) from Umatilla 25 | fne bk G; gn M; gran Shale........-. 1 
ui ship 
3 | SSW. 3S. Xs. 18° W.) from Umatilla SLUGS ine ibiaS Jen sta ea eee 1 
Lightship. 
4/S. ee 12° W.) from Umatilla 37 | G; bk S; Sh; gy S; gn M.-....-.....- 16 
ightshi 
5| 8.3 aw. &: 4° W.) from Umatilla 39-|) Geiers Dk Se. <3. 320 jesse ee eee 1 
Lig ghiship. 
6 | NW. by W. (N. 54° W.) from Grays 37.| ers DK Sign) Mesa: 335s. o-eeebse acess 1 
Harbor Light. 
7| WNW. (N. 65° W.) from Grays 39 | G; ers and fne gy and bk S.......... 3 
Harbor Light. 
8| WNW. (N. 68° W.) from Grays 35 | G; Sh; fne gy S; gn M; crs and fne bk 3 
Harbor Light. Ss. 
9 | WNW. 3 W. (N. 73° W.) from Grays 37 | G; ers bk §; fne gy S; gn Shale. ....-. 1 
Harbor Ti ght. 
10 | WNW. 3 WwW: (N. 75° W.) from Grays 34 | G; b1M; ers bk §;fne gy S.--.--.-..- 1 
Harboe z ht. 
11.) Wi b 80° W.) from Grays 33 | fme G;fne gy S...-- oii cee: faa 3 
Harbor Nt. 
12 NW a 46° W.) from Grays Harbor 2281 CrsiDkiS tics. 4---ee hee cere ee seeee ce 1 
ight 
13 WNW. (N. 65° W.) from Grays 16:) Crs\Go 5. ssc 2c eee eee aes 40 
Harbor Light. 
14 | W. by S. 3 W. (S. 88° W.) from Grays 31 | G; ers bk S; fne gy S; gran Shale.... 16 
Paneer ight. 
PABUES nticke deecriptivet of the patton G, gravel; crs, coarse; bk, black; S, sand; fne, fine; gy, gray; 
R, rock; gn, green; M, mud; gran, granular; Sh, shell; bl, blue. 
Columbia River section.—This section includes the region from 
Willapa Bay to Tillamook Bay. Off Willapa Bay a uniform bottom 
of fine gray sand predominates out to the 100-fathom line, beyond 
which there are occasionally found small areas of coarse black sand, 
blue mud or shale, and in one instance granular shale. Granular 
shale appears as a pseudogravel, but the nodules can be easily 
pressed together in the hands. 
Twelve miles west of Cape Disappointment is the eastern end of a 
long, narrow gully which extends to the westward approximately 12 
miles and which is 3 to 4 miles wide and 150 fathoms deeper than the 
inclosing ridges. The floor of this gully is covered with green mud, 
while the continental shelf to the north and east is regularly composed 
of fine gray sand. From the Columbia River southward the gray 
sand is replaced by green mud with a trace of gray sand which can 
not be detected until the mud is washed away. Along the south 
ridge of this gully several successful catches of halibut have been 
made during the spring of this year. Soundings here showed an 
outcrop of shale. Trials upon the north ridge would probably show 
that region to be worth fishing upon a large scale. Five outcrops of 
shale were found in this area, along the 100-fathom line. In fact, 
each time a line of soundings crossed the 100-fathom curve, hard 
blue mud or shale was obtained. 
