380 A. W. Chase—Gravel Deposit of Gold Bluffs. 
The mountains back from the coast, of which the bluffs form 
the sea-escarpment, are all one immense mass of gravel, of vary- 
mg size and distinctly marked layers or stratifieations. This 
gravel can be traced across the country, northeastwardly, to a 
point on.the Klamath River about thirty miles distant, where 
with exactitude. 
Commencing from the top, we have first a section of ten feet 
of loam; then twenty feet of yellow clay; then forty feet of 
coarse yellow gravel; then a stratum of sandstone of brownish 
color, ten feet; next forty feet of red and yellow gravel; then 
five feet of a blue-colored sandstone. Projecting from this layer 
are numerous stumps and other portions of trees, partially trans- 
formed into lignite. A specimen of this lignite is presente 
with this paper. Then we have fifty-five feet of a very coarse red 
and yellow gravel, and immediately beneath it five feet of very 
fine blue-colored gravel; then fifteen feet of indurated sand; 
then ten feet of gravel, stained deep red, probably from the 
presence of oxide of iron. Beneath this is another stratum of 
sandstone, five feet, blue in color, with pieces of the lignite 
before referred to projecting from it; then five feet more of 
blue sandstone without any lignite; then seven feet of gravelly 
fine gold can be detected with the microscope. The spoaunee 
obtained was a concretion cemented together on a large boul 
