612:(USGS) gauge, which is on the left, before receiving Adams Canyon and Bailey Canyon creeks from the right, Weaver Canyon from the left, and then Burcher Canyon from the right. Further downstream, the river receives Bare Creek from the left, and shortly thereafter Lower Imnaha Road crosses to the left bank and becomes Dug Bar Road (NFD 4260). Then Fence, Fall, Log, Kettle, Packsaddle, Buck, Little Basin, and Corral creeks enter from the left, before the river receives Thorn Creek from the left about 6 miles (9.7 km) from the mouth. Below this, Tulley Creek enters from the left and Lightning and Cow creeks from the right. Just upstream of Cow Creek, Dug Bar Road crosses the river to its right bank and continues away from it overland toward the Snake River upstream of its confluence with the Imnaha River, which has no road next to it for its final stretch. Below Cow Creek, Vance Draw enters from the left, Trough Gulch from the right, and Toomey Gulch from the left. The Imnaha River enters the
564:, also known as the Wallowa Mountain Loop and as NFD 39. At this point, the byway and Upper Imnaha Road become contiguous and run along the river's left bank. Blackhorse Campground is on the left shortly thereafter, and Blackhorse Creek enters from the left. Over the next stretch, the river receives Gumboot Creek, where the scenic byway leaves the river and follows the creek while Upper Imnaha Road, also known as NFD 3955 below this point, continues parallel to the river along its left bank. About 1 1/4 miles below Gumboot Creek is the Imnaha River Acclimation Site and Weir, where adult Chinook salmon are collected and smolts are released for the hatchery supplementation program. Soon Mahogany, Nine Point, and Spring creeks enter from the left, then Crazyman Creek from the right, followed by Henry Creek and Keener Gulch, both from the left, Grizzly Creek from the right, and Leggett Gulch from the left just upstream of RM 41 (RK 66).
48:
580:, on the left. Chalk Creek enters from the left and Campbell Creek from the right shortly thereafter, followed by Dunn Creek from the left and Freezeout Creek from the right. Slightly downstream of the confluence with Freezeout Creek, Upper Imnaha Road crosses the river again and runs along its right bank all the way to the community of Imnaha. Soon Indian and Turner creeks enter from the left and Blackmore and Double creeks from the right before the river passes the
29:
568:
556:, and Hidden Campground on the right. Beginning at Indian Crossing at RM 57 (RK 92), Upper Imnaha Road, also known as National Forest Development Road (NFD) 3960, runs parallel to the river along its left bank. Just below RM 54 (RK 87), Skookum Creek enters from the left, and the river passes Coverdale Campground, which is on the right.
55:
576:
Grouse Creek from the left at Park
Cemetery, which is on the left. Thereafter, Musty and Balter creeks enter from the right, and Line Creek from the left about 33 miles (53 km) from the mouth. Downstream, Winston Creek enters from the right and Park Creek from the left, then Beeler Creek from the left before the river flows by Imnaha
607:
to the southwest. The bridge that carries the highway is its eastern terminus and is also the western terminus of Hat Point Road, also known as NFD 4240, which drops down to the river from
Grizzly Ridge. Downstream of Imnaha, the road running parallel to the river along its right bank is known
575:
Further along, Trail Creek enters from the right, and Upper Imnaha Road crosses the river and continues parallel to it along its right bank. Soon Neil Canyon and
Johnson Creek, where Upper Imnaha Road crosses to the left bank, enter from the right. Below this, Shin Creek enters from the right, then
559:
About 2 miles (3 km) later, the river turns toward the north and it continues generally north or slightly east of north for the rest of its course. Beaverdam Creek enters from the left and Dry Creek from the right before the river reaches
Ollokot Campground, on the right at about RM 48.5
905:(RM) markers for the entire course of the river, cover the following quadrants from mouth to source: Deadhorse Ridge, Cactus Mountain, Haas Hollow, Imnaha, Jaynes Ridge, Puderbaugh Ridge, Gumboot Butte, Duck Creek, and Deadman Point.
552:(RM) 60 or river kilometer (RK) 97. About 2 miles (3 km) further downstream, the river leaves the Eagle Cap Wilderness and flows by Indian Crossing and Evergreen campgrounds, both on the
595:
station, Adams, Schleur, Spring, Snell, Loyd, Keeler, Jody, Thorn, Dunlap, Rippleton, Dead Horse, High Camp, and Deer creeks enter from the right before Sheep Creek enters from the left near
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Flowing east from its source, the river receives
Deadman Canyon from the right, then passes over Imnaha Falls and receives Rock Creek from the
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458:, the only settlement along its course, and enters the Snake River roughly 4 miles (6 km) from the larger river's confluence with the
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is the only named settlement through which the river passes. The Imnaha River rises at about 5,300 feet (1,600 m) above
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line, descends about 4,400 feet (1,300 m) between source and mouth. At this point, the North Fork of the Imnaha
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and private land, its corridor includes parts of three special management areas: the
95:
768:
U.S. Geological Survey. National
Hydrography Dataset high-resolution flowline data.
704:(Seventh ed.). Portland, Oregon: Oregon Historical Society Press. p. 496.
753:
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494:. It flows east and then north and north-northeast along the Imnaha Divide through
584:, on the left at about RM 27 (RK 43). Near the station, which is on the
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Formed by the confluence of its north and south forks, the Imnaha River begins at
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560:(RK 78.1). Near the confluence with Dry Creek, the river passes under the
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about 4.0 miles (6.4 km) above the larger river’s confluence with the
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422:. Flowing generally east near the headwaters and then north through
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at RM 19.5 (RK 31.4). At Imnaha, the river passes under
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as Lower Imnaha Road. Slightly below Imnaha, the river passes a
730:. Norman, Oklahoma: University of Oklahoma Press. p. 182.
818:"Water-data report 2013: 13292000 Imnaha River at Imnaha, OR"
929:(Map) (1991 ed.). DeLorme Mapping. § 87–88.
134:
Confluence of the North and South forks of the Imnaha River
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790:"Imnaha River – 17060102: 8-Digit Hydrologic Unit Profile"
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and 192 miles (309 km) from its confluence with the
466:
and 192 miles (309 km) from its confluence with the
410:
is a 73.3-mile-long (118.0 km) tributary of the
681:. United States Geological Survey. November 28, 1980
434:to the Snake River, and in addition to land in the
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Location of the mouth of the Imnaha River in Oregon
21:
889:"United States Geological Survey Topographic Map"
848:. National Wild and Scenic Rivers. Archived from
823:. United States Geological Survey. pp. 1, 3
728:Native American Placenames of the United States
700:McArthur, Lewis A.; McArthur, Lewis L. (2003).
840:
838:
8:
1029:Oregon placenames of Native American origin
1004:Wild and Scenic Rivers of the United States
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571:The river as seen in the dry summer months
498:, for about 64 miles (103 km) to the
329:, 19.3 miles (31.1 km) from the mouth
812:
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658:
648:List of National Wild and Scenic Rivers
588:, College Creek enters from the right.
359:20,200 cu ft/s (570 m/s)
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16:Tributary of the Snake River in Oregon
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546:Hells Canyon National Recreation Area
526:is connected to the West Fork of the
492:Wallowa–Whitman National Forest
444:Hells Canyon National Recreation Area
436:Wallowa–Whitman National Forest
387:
379:
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339:511 cu ft/s (14.5 m/s)
230:Hells Canyon National Recreation Area
145:Wallowa–Whitman National Forest
7:
953:Hiking Oregon's Eagle Cap Wilderness
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586:National Register of Historic Places
349:16 cu ft/s (0.45 m/s)
78:leader Alternatively, the name of a
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677:Geographic Names Information System
304:855 sq mi (2,210 km)
14:
643:List of longest streams of Oregon
426:, the entire river is designated
1014:Rivers of Wallowa County, Oregon
53:
46:
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1019:Wallowa–Whitman National Forest
885:United States Geological Survey
610:United States Geological Survey
603:, which links the community to
74:The land ruled over by Imna, a
1009:Tributaries of the Snake River
756:elevation for GNIS coordinates
374:National Wild and Scenic River
245: • coordinates
160: • coordinates
1:
984:Hells Canyon Scenic Byway map
122:Physical characteristics
582:College Creek Ranger Station
284: • elevation
203:5,324 ft (1,623 m)
199: • elevation
322: • location
225: • location
140: • location
1045:
927:Oregon Atlas and Gazetteer
450:. The Imnaha flows by the
384:Wild, Scenic, Recreational
355: • maximum
345: • minimum
335: • average
562:Hells Canyon Scenic Byway
518:and, in a canyon along a
482:and the western slope of
448:Hells Canyon Scenic Byway
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958:Rowman & Littlefield
901:The maps, which include
726:Bright, William (2004).
638:List of rivers of Oregon
430:. It follows a geologic
296:73 mi (117 km)
288:945 ft (288 m)
702:Oregon Geographic Names
950:Barstad, Fred (2014).
846:"Imnaha River, Oregon"
779:, accessed May 3, 2011
572:
496:Wallowa County, Oregon
267:45.81750°N 116.76472°W
182:45.11306°N 117.12528°W
570:
1024:Eagle Cap Wilderness
488:Eagle Cap Wilderness
440:Eagle Cap Wilderness
272:45.81750; -116.76472
187:45.11306; -117.12528
591:Below the historic
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775:2012-03-29 at the
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33:Imnaha River near
852:on March 25, 2009
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672:"Imnaha River"
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524:drainage basin
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508:unincorporated
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893:. Retrieved
854:. Retrieved
850:the original
827:February 12,
825:. Retrieved
797:. Retrieved
784:
754:Google Earth
727:
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683:. Retrieved
675:
618:Salmon River
590:
574:
558:
539:
532:Polaris Pass
506:border. The
477:
460:Salmon River
408:Imnaha River
407:
405:
22:Imnaha River
891:. TopoQuest
614:Snake River
578:Grange Hall
500:Snake River
412:Snake River
270: /
258:116°45′53″W
218:Snake River
185: /
173:117°07′31″W
993:Categories
903:river mile
654:References
550:river mile
542:right bank
484:Mount Nebo
416:U.S. state
389:Designated
301:Basin size
255:45°49′03″N
170:45°06′47″N
554:left bank
516:sea level
313:Discharge
80:Nez Perce
71:Etymology
895:June 29,
887:(USGS).
856:June 29,
773:Archived
685:June 29,
632:See also
490:and the
87:Location
82:village.
799:July 1,
530:by the
486:in the
414:in the
116:Wallowa
92:Country
964:
933:
734:
708:
679:(GNIS)
605:Joseph
597:Imnaha
512:Imnaha
474:Course
456:Imnaha
446:, and
420:Oregon
327:Imnaha
316:
293:Length
238:Oregon
153:Oregon
131:Source
112:County
106:Oregon
35:Imnaha
821:(PDF)
793:(PDF)
622:Idaho
504:Idaho
464:Idaho
432:fault
213:Mouth
102:State
962:ISBN
931:ISBN
897:2009
858:2009
829:2014
801:2009
732:ISBN
706:ISBN
687:2009
406:The
381:Type
620:of
548:at
462:of
418:of
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689:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
