44 TOPOGRAPHIC DEVELOPMENT OF KLAMATH MOUNTAINS, [bull.196. 
possible to determine only the following: Sequoia angustifolia Lesq. (single 
specimen), Salix angusta Al. W. (numerous specimens), Quercus sp. (large leaf, 
but badly broken), large three-ribbed leaf, but without margin. 
The remarks under Sequoia angustifolia in the former report apply here. 
Salix angusta also has a wide distribution in the Tertiary, but the specimens 
under consideration are very similar to numerous leaves referred to this species 
from the auriferous gravels of California. 
The results obtained from the study of this material are far from satisfactory. 
Only two species, and these of general distribution in the Tertiary, can at present 
be determined. Relying on their resemblance to material known to have come 
from the auriferous gravels, it seems not improbable that the Hay Fork beds may 
be similar in age, namely, Upper Miocene. 
REDDING CREEK AND WEAVERVILLE REGION. 
Deposits of the same sort occur in the valley of Redding- Creek 6 
miles southeast of Douglas City. They overlie the fossiliferous Cre- 
taceous rocks of that basin, with strike about N. 65° E. and dip 25° 
SE. A mass of conglomerate rests upon volcanic tuffs and shale in 
which some coal has been found, and in the shales occur traces of 
leaves, among which Prof. Lester F. Ward recognizes a Ficus whose 
age he hesitates to pass upon, although he suggests that the form 
points to a position lower than the auriferous gravels of Chalk Bluff 
The latest researches of Mr. Lindgren ! indicate that the Chalk Bluff 
beds are of Miocene age. 
By far the largest and most important Neocene river deposit, hav- 
ing a thickness of about 1,000 feet, is in the vicinity of Weaverville, 
extending northeastward for nearly 20 miles, with an average breadth 
of over 1 mile, to near Swift Creek. Smaller areas of the same tilted 
conglomerates, sandstones, and shales of little coherence occur south- 
west of Weaverville near the Junction City road, at several points on 
Browns Mountain, and along the Trinity River from a short distance 
above Lowdens southward for about 4 miles. Large bones and teeth 
have been reported to the writer by miners from the Weaverville 
Basin, but definite information could not be obtained so as to fix the 
place of the fossils. Such fossils are not uncommon in some of the ! 
bench gravels of the Klamath and other rivers, but their occurrence 
in the Weaverville Basin beds is not j^et certain. 
At Big Bar, on Trinity River, 20 miles directly west of Weaver- 
ville, there is a mass of sandstones and shales containing beds of coal 
having a total thickness of at least 100 feet and an inclination of 35°J 
No fossils were observed. 
It may be assumed with great probability that all tne fluvio- 
lacustrine or estuarine deposits here considered are of essentially the 
same age. A striking feature of these deposits of the Trinity region 
is their inclination. They dip in various directions, but for the most 
part easterly, and lie far below the general level of the plateau sum- 1 
1 Jour. Oeol., Vol. IV, 18%, p. 885. 
