1()4 Kansas Academy of Science. 



gravellyj sandstone, fipproaching the conglomerate stage. From 

 (Tottysbnrg"]westwnr(l in from the coast a few miles to the top of 

 the divide the country rock is generally shale; along the East of 

 (/hillam-La Push wagon-road it is the country rock from a mile 

 south of East Clallam the whole distance to the summit of the di- 

 vide. This shale at its base is thinly bedded and plainly laminated, 

 but higher up in the series becomes almost massive clay, while in 

 the disturbed central region it becomes a hard slate or "slag-like" 

 rcjck. 



The whole region from near Port Crescent to Gettysburg ex- 

 poses shale. This contains nodules, boulders and concretions of 

 Hint; sometimes the flint forms a partial stratum. The shale is 

 dark brown on exposed surfaces; otherwise irony gray. An over- 

 thrust is shown in these beds about a mile west of Gettysburg; 

 and near that place hydrogen sulfid gas was noticed to be escap- 

 ing from cracks in the shale, Sandstone dikes also cut the shale 

 now and then in the region between Twins and Pysht; these are 

 likely derived from the interbedded sandstone. 



Where the Hoko river cuts its canon through the Olympic 

 axis, it exposes hard slate, shale and sandstone. The block of slate 

 east of the river here dips generally to the northeast. On the 

 ridge the dip is only about ten degrees; but as the straits are 

 neared it becomes steeper and steeper, reaching even seventy de- 

 grees in some places. From the main ridge here several cross- 

 ridges extend southward, apparently of the same formation. 



From the Sekiu river a mile and a half in from the straits there 

 runs a ridge northward to Neah Bay, with northeasterly dipping 

 strata. The rock in the center of this ridge is a dark, very hard, 

 -'slag-like rock," between a flint and a slate. 



The basal conglomerate is usually very hard and is composed of 

 pebbles and cobbles of granite, gneiss, quartzite, jasper, agate, 

 black to green slate, and volcanic rock, mostly basalt and basalt 

 tuffs. In the upper conglomerate series the volcanics are mostly 

 wanting. 



The sandstones, for the most part, are thin-bedded, hard, and re- 

 sistant to erosion. At East Clallam they are immediately below 

 the upper conglomerates, and -in the Cape Flattery promontory 

 tliey are found at the base and near the top of the formation. They 

 are quite fossiliferous, especially at Gettysburg and East Clallam. 

 In them, especially at Slip Point, fragments of coal are found and 

 thin, taperingout layers of impure coal of the lignitic type are occa- 

 sionally met with; while towards Pillar Point from East Clallam 

 are the Clallam coal-beds of this formation, a mention of which 



