Mammal

Mountain Beaver

Aplodontia rufa
Mammal Fort Clatsop, near present-day Astoria, Oregon New to Western Science
Mountain Beaver

Photo: Lee Cain, CC BY 4.0

Common Names
Sewellel
Habitat
Fort Clatsop
Conservation
Secure
First Observed
1806-02-26
Observed At
Fort Clatsop, near present-day Astoria, Oregon

Primitive, burrowing rodent that lives among conifers. Seen only once by Corps; Lewis described pelts taken in trade.

Journal References

15 journal entries mention Mountain Beaver

May 19 1805
Seaman Bitten by a Beaver — Nearly Dies
... Montana. Lewis recorded that Seaman was "badly bitten by a beaver" after apparently catching or cornering the animal near the water's edge. The beaver severed an art...
Jul 6 1806
Lewis: July 6, 1806
...s are all those we have seen today. killed five deer and a beaver today. encamped on the creek much sign of beaver in this extensive bottom.
Jul 7 1806
Clark: July 7, 1806
...Sentinal to examine the horses after the moon rose. Emence beaver sign. This extensive vally Surround with covered with snow is extreemly fertile covered esculent p...
Jul 7 1806
Lewis: July 7, 1806
...en continued up it on the left hand side much appearance of beaver many dams. bottoms not wide and covered with low willow and grass. halted to dine at a large beav...
Jul 10 1806
Clark: July 10, 1806
...ull and extensive Vally open and fertile which we Call the beaver head Vally which is the Indian name in their language Har na Hap pap Chah. from the No. of those a...
Jul 11 1806
Clark: July 11, 1806
...oint of land on the left Side which the Shoshones call the beavers head. the wind rose and blew with great violence from the S W imediately off Some high mountains ...
Jul 12 1806
Clark: July 12, 1806
...r did not join me last night he has proceeded on down. the beaver was flacking in the river about us all the last night. this Morning I was detained untill 7 A M ma...
Jul 13 1806
Clark: July 13, 1806
...n the plains and Deer in the river bottoms. I also observe beaver and Several otter in galletines river as I passed along. Gibson killed an otter the fur of which w...
Jul 14 1806
Clark: July 14, 1806
...ossing those defferent chanels all of which was damed with beaver in Such a manner as to render the passage impracticable and after Swamped as I may Say in this bot...
Jul 15 1806
Clark: July 15, 1806
...h as Cotton & willow in it's bottoms, and Great numbers of beaver the river also abounds in those animals as far as I have Seen. passed the creek and over a high ro...
Jul 17 1806
Clark: July 17, 1806
...N E side is 30 yards wide. I call it Otter River the other Beaver R below the enterance of this Creek I halted as usial to let the Horses graze &c. I saw a Single P...
Jul 17 1806
Lewis: July 17, 1806
...ty in the river bottoms The spies returned having killed 2 beaver and a deer. they reported that they saw no appearance of Indians.-
Jul 20 1806
Lewis: July 20, 1806
...r birds common to the country. there is much appearance of beaver on this river, but not any of otter. from the apparent decent of the country to the North and abov...
Jul 24 1806
Clark: July 24, 1806
...w emenc number of Deer Elk and buffalow on the banks. Some beaver. I landed on the Lard Side walked out into the bottom and Killd the fatest Buck I every Saw, Shie...
Jul 26 1806
Clark: July 26, 1806
...nd Antelopes are plenty and the river is Said to abound in beaver. it is inhabited by a great number of roveing Indians of the Crow Nation, the paunch Nation and th...

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