Eureka Creek is a
tributary
A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drai ...
of
Baker Creek in the
U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...
of
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S. ...
. Other Baker tributaries in the vicinity of Eureka Creek include Thanksgiving, Gold Run, and
Pioneer
Pioneer commonly refers to a settler who migrates to previously uninhabited or sparsely inhabited land.
In the United States pioneer commonly refers to an American pioneer, a person in American history who migrated west to join in settling and de ...
creeks with Seattle Junior Creek a tributary of Pioneer.
Geography
Eureka Creek flows southwest along the foot of the Baker-
Minook divide. It runs in a straight southwest course for about , then turns and runs south to its junction with Pioneer Creek. It has a number of small tributaries from the northwest side, but none from the southeast. The largest is Boston Creek, about long, which joins Eureka Creek at its bend. The other tributaries are
rill
In hillslope geomorphology, a rill is a shallow channel (no more than a few inches/ decimeters deep) cut into soil by the erosive action of flowing surface water. Similar but smaller incised channels are known as microrills; larger incised c ...
s. Eureka is a small creek carrying barely a
sluicehead of water above the mouth of Boston Creek during the ordinary seasons. The valley slopes gently to the divide on the northwest side, but on the southeast side the slope is almost precipitous, rising above the valley. The creek flows close to the foot of the steeper side.
The gravels of the creek are not very worn, characteristic of weak streams, and have been left for a considerable distance, in places at least , up the slope of the hill as the stream bed has moved to the southeast. The bench gravels are made up entirely of country rocks. The deposit varies in thickness from , and the overlying muck varies from between , the distribution being irregular. The total thickness varies from . The gravel contains a considerable amount of very sticky clay. The clay seems to come from the decomposition of both the grit and the slates.
History
Gold was first discovered on Eureka Creek in February 1899.
References
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;Bibliography
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Rivers of Alaska
Rivers of Yukon–Koyukuk Census Area, Alaska
Rivers of Unorganized Borough, Alaska