Geographic Units: Difference between revisions

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! # !! Geographic Unit !! Mid-level Unit !! WRIA !! Source !! HUC12_List !! Description
! # !! Geographic Unit !! Mid-level Unit !! WRIA !! Source !! HUC12_List !! Description
|-
|-
| 1 || Gold Creek || Upper Yakima Watershed || 39 || HUC12 Split || (170300010301) || Gold Creek and its tributaries
| 1 || Gold Creek || Upper Yakima Watershed || 39 || HUC12 SPLIT || (170300010301) || Gold Creek and its tributaries
|-
|-
| 2 || Keechelus Lake || Upper Yakima Watershed || 39 || HUC12 Split || (170300010301) || Keechelus Lake and all tributaries except Gold Creek
| 2 || Keechelus Lake || Upper Yakima Watershed || 39 || HUC12 SPLIT || (170300010301) || Keechelus Lake and all tributaries except Gold Creek
|-
|-
| 3 || Upper Kachess River || Upper Yakima Watershed || 39 || HUC12 split || (170300010303) || Upper Kachess River and its tributaries
| 3 || Upper Kachess River || Upper Yakima Watershed || 39 || HUC12 SPLIT || (170300010303) || Upper Kachess River and its tributaries
|-
|-
| 4 || Box Canyon Creek || Upper Yakima Watershed || 39 || HUC12 Split || (170300010303) || Box Canyon Creek and its tributaries
| 4 || Box Canyon Creek || Upper Yakima Watershed || 39 || HUC12 SPLIT || (170300010303) || Box Canyon Creek and its tributaries
|-
|-
| 5 || Kachess Lake || Upper Yakima Watershed || 39 || HUC12 Split || (170300010303) || Kachess Lake and all its tributaries except Box Canyon and Upper Kachess
| 5 || Kachess Lake || Upper Yakima Watershed || 39 || HUC12 SPLIT || (170300010303) || Kachess Lake and all its tributaries except Box Canyon and Upper Kachess
|-
|-
| 6 || Cabin Creek || Upper Yakima Watershed || 39 || HUC12 || 170300010302 || Cabn Creek and its tributaries
| 6 || Cabin Creek || Upper Yakima Watershed || 39 || HUC12 || 170300010302 || Cabn Creek and its tributaries
Line 273: Line 273:
| Yakima River from Taneum Creek to Manastash Creek and all its tributaries except Reecer Creek
| Yakima River from Taneum Creek to Manastash Creek and all its tributaries except Reecer Creek
|-
|-
| 24 || Ellensburg Reach - Yakima River Mainstem || Thorp to Ellensburg Reach || 39 || HUC12 Split || (170300010511) || Yakima River and its tributaries from Manastash Creek to Wilson Creek
| 24 || Ellensburg Reach - Yakima River Mainstem || Thorp to Ellensburg Reach || 39 || HUC12 SPLIT || (170300010511) || Yakima River and its tributaries from Manastash Creek to Wilson Creek
|-
|-
| 25 || Wilson/Naneum Creek || Ellensburg Area Watershed || 39 || HUC 12 MERGE || 170300010401
| 25 || Wilson/Naneum Creek || Ellensburg Area Watershed || 39 || HUC 12 MERGE || 170300010401
Line 332: Line 332:
| 32 || Little Naches River || Upper Naches Watershed || 38 || HUC 12 MERGE || 170300020101
| 32 || Little Naches River || Upper Naches Watershed || 38 || HUC 12 MERGE || 170300020101
170300020102
170300020102
170300020103
170300020103
170300020109
170300020109
| Little Naches River and its tributaries
| Little Naches River and its tributaries
Line 338: Line 340:
| 33 || Bumping River || Upper Naches Watershed || 38 || HUC12 MERGE || 170300020104
| 33 || Bumping River || Upper Naches Watershed || 38 || HUC12 MERGE || 170300020104
170300020105
170300020105
170300020108 || Bumping River and its tributaries including Bumping Lake
 
170300020108
|Bumping River and its tributaries including Bumping Lake
|-
|-
| 34 || American River || Upper Naches Watershed || 38 || HUC12 Split || 170300020106
| 34 || American River || Upper Naches Watershed || 38 || HUC12 SPLIT || 170300020106
170300020107
170300020107
| American River and its tributaries
| American River and its tributaries
Line 352: Line 356:
| 37 || Rattlesnake Creek || Nile Reach || 38 || HUC 12 MERGE || 170300020204
| 37 || Rattlesnake Creek || Nile Reach || 38 || HUC 12 MERGE || 170300020204
170300020205
170300020205
170300020206 || Rattlesnake Creek and its tributaries
 
170300020206
|Rattlesnake Creek and its tributaries
|-
|-
| 38 || Middle Naches River (Nile) || Nile Reach || 38 || HUC 12 MERGE || 170300020207
| 38 || Middle Naches River (Nile) || Nile Reach || 38 || HUC 12 MERGE || 170300020207
Line 366: Line 372:
| South Fork Tieton River and its tributaries
| South Fork Tieton River and its tributaries
|-
|-
| 42 || Indian Creek || Tieton Watershed || 38 || HUC12 Split || (170300020305) || Indian Creek and its tributaries
| 42 || Indian Creek || Tieton Watershed || 38 || HUC12 SPLIT || (170300020305) || Indian Creek and its tributaries
|-
|-
| 43 || Rimrock Lake || Tieton Watershed || 38 || HUC12 Split || (170300020305) || Rimrock Lake and all its tributaries except Indian Creek and the North and South Fork Tieton Rivers
| 43 || Rimrock Lake || Tieton Watershed || 38 || HUC12 SPLIT || (170300020305) || Rimrock Lake and all its tributaries except Indian Creek and the North and South Fork Tieton Rivers
|-
|-
| 44 || Tieton River || Tieton Watershed || 38 || HUC 12 MERGE || 170300020306
| 44 || Tieton River || Tieton Watershed || 38 || HUC 12 MERGE || 170300020306
Line 380: Line 386:
| 47 || Cowiche Creek || Lower Naches Reach || 38 || HUC12 MERGE || 170300020309
| 47 || Cowiche Creek || Lower Naches Reach || 38 || HUC12 MERGE || 170300020309
170300020310
170300020310
170300020311 || Cowiche Creek and its tributaries
 
170300020311
|Cowiche Creek and its tributaries
|}
|}


=== '''WRIA 37 Lower Yakima Geographic Units''' ===
=== '''WRIA 37 Lower Yakima Geographic Units''' ===
[[File:WRIA 37 Geographic Units.jpg|none|thumb|1000x1000px]]
[[File:WRIA 37 Geographic Units.jpg|none|thumb|1000x1000px]]ADD LINKS FROM BELOW TO TABLE:
 
{| class="wikitable"
! # !! Geographic Unit !! Mid-level Unit !! WRIA !! Source !! HUC12_List !! Description
|-
| 48 || Gap to Gap Reach  - Yakima River Mainstem || Gap to Gap Reach || 37 || HUC12 || 170300030206 ||
|-
| 49 || Wide Hollow Creek || Gap to Gap Reach || 37 || Merge (HUC12) || 170300030204,170300030205 ||
|-
| 50 || Moxee Drain || Gap to Gap Reach || 37 || HUC12 || 170300030201, 170300031102, 170300031103 ||
|-
| 51 || Ahtanum Creek || Ahtanum Watershed || 37 || Merge (HUC12) || 170300030101, 170300030102, 170300030103, 170300030104, 170300030105 ||
|-
| 52 || Wapato Reach - Yakima River Mainstem || Wapato Reach || 37 || Merge (HUC12) || 170300030501, 170300030502, 170300030503, 170300030506, 170300031001, 170300031002 ||
|-
| 53 || Wanity Slough and Marion Drain || Wapato Reach || 37 || Merge (HUC12) || 170300030401,170300030402,170300030403 ||
|-
| 54 || Granger Drain || Wapato Reach || 37 || Merge (HUC12) || 170300030504,170300030505 ||
|-
| 55 || Upper Toppenish Creek || Toppenish Watershed || 37 || Merge (HUC12) || 170300030601,170300030602,170300030603,170300030605 ||
|-
| 56 || Simcoe Creek || Toppenish Watershed || 37 ||  || 170300030301, 170300030302, 170300030303, 170300030304, 170300030305 ||
|-
| 57 || Lower Toppenish Creek || Toppenish Watershed || 37 || Merge (HUC12) || 170300030604,170300030606,170300030607 ||
|-
| 58 || Upper Satus Creek || Satus Watershed || 37 || Merge (HUC12) || 170300030701,170300030701,170300030702,170300030706 ||
|-
| 59 || Dry Creek || Satus Watershed || 37 || Merge (HUC12) || 170300030801,170300030802,170300030803 ||
|-
| 60 || Logy Creek || Satus Watershed || 37 || Merge (HUC12) || 170300030703,170300030704,170300030705 ||
|-
| 61 || Lower Satus Creek || Satus Watershed || 37 || Merge (HUC12) || 170300030804,170300030805,170300030806,170300030807 ||
|-
| 62 || Mabton Reach - Yakima River Mainstem || Mabton Reach || 37 || HUC12 || 170300031003,170300031004 ||
|-
| 63 || Sulphur Creek Wasteway || Mabton Reach || 37 || Merge (HUC12) || 170300030901,170300030902,170300030903,170300030904,170300030905,170300030906 ||
|-
| 64 || Prosser Reach - Yakima River Mainstem || Lower Yakima || 37 || HUC12 || 170300031007 ||
|-
| 65 || Lower Yakima Reach - Yakima River Mainstem || Lower Yakima || 37 || HUC12 || (170300031003),(170300031005),170300031202 ||
|-
| 66 || Spring and Snipes Creeks || Lower Yakima || 37 || HUC12 || 170300031005,170300031006 ||
|-
| 67 || Corral Creek || Lower Yakima || 37 || HUC12 || 170300031201 ||
|-
| 68 || Cold Creek || Lower Yakima || 37 || HUC12 || 170300031101, 170300031102, 170300031103, 170300031104, 170300031105, 170300031106, 170300031107, 170300031108, 170300031109 ||
|-
| 69 || Amon Creek || Lower Yakima || 37 || HUC12 || 170300031204 ||
|}
ADD LINKS FROM BELOW TO TABLE:
# [[Prosser Reach|Prosser Reach - Yakima River Mainstem]]
# [[Prosser Reach|Prosser Reach - Yakima River Mainstem]]
# [[Lower Yakima Reach - Yakima River Mainstem]]
# [[Lower Yakima Reach - Yakima River Mainstem]]

Revision as of 15:27, 25 October 2025

We have divided the Yakima Basin into geographic reaches based on tributary watersheds and mainstem reaches. While we tried to follow HUC boundaries where possible, this is a unique arrangement that is meant to match how we talk about places in the basin.

The links below take you to individual pages for each area, where you can find detailed information on the watersheds, streams and river reaches in each geographic unit.

REDO INTRO; BUILD OUT LINKS BELOW

Geographic Frameworks Used in the Yakima Basin

Recovery Board system

HUC system: https://www.usgs.gov/national-hydrography/watershed-boundary-dataset

Population areas by species

Subbasin Plan Assessment Units

ADD LINK/IFRAME FOR FUTURE WEB MAP

River miles?

More information on the default geographic organization used in Yakipedia can be found below.

Yakima Basin

An online GIS layer for the Yakima Basin can be found here: ADD LINK TO GIS PORTAL

It makes up approximately 10% of the state of Washington, with an area of ADD.

The Yakima Basin is both a USGS HUC 4 (1703) and HUC 6 watershed (17030001) within the HUC 2 Region #17 (Pacific Northwest); interestingly there is no HUC designation for the Columbia Basin.

The Northwest Power and Conservation Council uses the Columbia Basin as its top-level unit, which is divided into Provinces and then subbasins. The Yakima Basin is #62 of the 62 total subbasins, and is one of 11 subbasins within the Columbia Plateau Province. You can see a map of this framework here:. https://www.nwcouncil.org/subbasin-plans/map/ The 2004 Yakima Subbasin Plan LINK divided the Yakima Subbasin into ?? assessment units FIND/LINK TO MAP.

The Yakima Basin makes up approximately 2/3rds of the State of Washington's Middle Columbia Salmon Recovery Region. Link

The Yakima Basin is one of four Major Population Groups (MPGs) withing NOAA's Middle Columbia River Steelhead Distinct Population Segment (DPS).

The Yakima Basin is designated by USFWS as one of 24 Occupied Core Areas within the Mid-Columbia Bull Trout Evolutionarily Significant Unit (ESU).

Add Map of Yakima in state?

WRIAs

Washinton State's Water Resource Areas (WRIAs) are our top-level breakout unless there is a compelling reason to us a different geographic framework. There are three WRIAs in the Yakima Basin, and they are consistent with the USGS HUC 8s.

WRIAs in the Yakima Basin

WRIA Name HUC 8 Description
37 Lower Yakima 17030003 Yakima River and all its tributaries below the Naches River confluence
38 Naches 17030002 Naches River and all its tributaries
39 Upper Yakima 17030001 Yakima River and all its tributaries above the Naches River confluence

See map below.

Mid-Level Geographic Units

Middle layer are either watersheds (when all areas that drain to the lowest point in a unit are included in the unit) or reaches (when water flows into a unit from an upstream unit). We have designated 18 Mid-Level Units; they are consistent with HUC 10 watersheds except where we have a specific reason to split and/or combine HUC 10s. We use names that match local usage, which differ from the often-inscrutable official HUC names.

WRIAs and Mid-level Geographic Units


Mid-Level Geographic Units

Unit Name WRIA HUC 10(s) Description
1 Upper Yakima Watershed 39 1703000103 Yakima River and all tributaries except the Cle Elum from Cascade Crest to the mouth of the Teanaway, including Kachess and Keechelus Lakes
2 Cle Elum Watershed 39 1703000101 Cle Elum River and all its tributaries
3 Teanaway Watershed 39 1703000102 Teanaway River and all its tributaries
4 Thorp to Ellensburg Reach 39 1703000105 Yakima River and its tributaries from the mouth of the Teanaway downstream to the mouth of Wilson Creek
5 Ellensburg Area Watershed 39 1703000104 Wilson Creek and all of its tributaries
6 Yakima Canyon Reach 39 1703000107 Yakima River and its tributaries (except Wenas Creek) between the mouth of Wilson Creek and the mouth of the Naches
7 Wenas Watershed 39 1703000106 Wenas Creek and all its tributaries
8 Upper Naches Watershed 38 1703000201 American, Bumping and Little Naches Rivers and all their tributaries, including Bumping Lake
9 Nile Reach 38 1703000202 The Naches River from the confluence of the Bumping and Little Naches to the confluence of the Tieton and its tributaries
10 Tieton Watershed 38 half of 1703000203 The Tieton River and its tributaries including Rimrock Lake
11 Lower Naches Reach 38 half of 1703000203 Naches River and its tributaries from the mouth of the Tieton to the confluence with the Yakima, including Cowiche Creek
12 Gap to Gap Reach 37 1703000302 Yakima River and its tributaries from the mouth of the Naches to the mouth of Ahtanum Creek
13 Ahtanum Watershed 37 1703000301 Ahtanum Creek and all its tributaries
14 Wapato Reach 37 1703000304, 1703000305 & part of 1703000310 Yakima River from Union Gap to approximately 4.25 miles below the mouth of Satus Creek
15 Toppenish Watershed 37 1704000306 & 1704000303 Toppenish Creek and all its tributaries
16 Satus Watershed 37 1704000307 & 1704000308 Satus Creek and all its tributaries
17 Mabton Reach 37 1703000309 and part of 1703000310 Yakima River and its tributaries from approximately 4.25 miles below the mouth of Satus Creek to just downstream of the Benton County line
18 Lower Yakima 37 1703000312, 1703000311 & part of 1703000310 Yakima River and its tributaries from just below the Benton County line to the confluence of the Yakima and Columbia Rivers

Geographic Units

Geographic units are the smallest spatial unit in our framwork and are named after the dominant creek or river that passes through them. The are mean to represent a convenient scale at which to describe watersheds and reaches that are less numerous than HUC 12s (69 geographic units vs 153 HUCs) and and have names that intuitively describe their geography. Where possible these consist of one or more complete HUC 12s, but in some cases creating units that match general usage in the basin requires either combining or splitting HUC 12s.

WRIA 39 Upper Yakima Geographic Units

# Geographic Unit Mid-level Unit WRIA Source HUC12_List Description
1 Gold Creek Upper Yakima Watershed 39 HUC12 SPLIT (170300010301) Gold Creek and its tributaries
2 Keechelus Lake Upper Yakima Watershed 39 HUC12 SPLIT (170300010301) Keechelus Lake and all tributaries except Gold Creek
3 Upper Kachess River Upper Yakima Watershed 39 HUC12 SPLIT (170300010303) Upper Kachess River and its tributaries
4 Box Canyon Creek Upper Yakima Watershed 39 HUC12 SPLIT (170300010303) Box Canyon Creek and its tributaries
5 Kachess Lake Upper Yakima Watershed 39 HUC12 SPLIT (170300010303) Kachess Lake and all its tributaries except Box Canyon and Upper Kachess
6 Cabin Creek Upper Yakima Watershed 39 HUC12 170300010302 Cabn Creek and its tributaries
7 Big Creek Upper Yakima Watershed 39 HUC12 170300010305 Big Creek and its tributaries
8 Upper Yakima River Mainstem Upper Yakima Watershed 39 HUC12 170300010304 Yakima River from Keechelus Dam to Easton Lake and all its tributaries except Cabin Creek
9 Easton Reach - Yakima River Mainstem Upper Yakima Watershed 39 HUC 12 170300010306 Yakima River from Easton Lake to the Cle Eum River and all its tributaries except Big Creek
10 Cle Elum Reach - Yakima River Mainstem Upper Yakima Watershed 39 HUC12 170300010307 Yakima River from the Cle Elum River to the Teanaway River and all its tributaries
11 Waptus River Cle Elum Watershed 39 HUC12 170300010101 Waptus River and its tributaries
12 Cooper River Cle Elum Watershed 39 HUC12 170300010103 Cooper River and its tributaries
13 Cle Elum River Cle Elum Watershed 39 HUC 12 MERGE 170300010102

170300010104

170300010105

170300010106

Cle Elum River and Lake and all their tributaries except the Wapatus and Cooper Rivers
14 North Fork Teanaway River Teanaway Watershed 39 HUC 12 MERGE 170300010201

170300010204

North Forl Teanaway and its tributaries
15 Middle Fork Teanaway River Teanaway Watershed 39 HUC12 170300010202 Middle Forl Teanaway and its tributaries
16 West Fork Teanaway River Teanaway Watershed 39 HUC12 170300010203 West Forl Teanaway and its tributaries
17 Mainstem Teanaway River Teanaway Watershed 39 HUC12 170300010205 Mainstem Teanaway River from the confluence of the Middle and West Forks to its mouth and all its tributaries except the North Fork
18 Taneum Creek Thorp to Ellensburg Reach 39 HUC 12 MERGE 170300010503

170300010504

Taneum Creek and its tributaries
19 Manastash Creek Thorp to Ellensburg Reach 39 HUC 12 MERGE (one partial) 170300010508

170300010509

(170300010511)

Manastash Creek and its tributaries
20 Reecer Creek Thorp to Ellensburg Reach 39 HUC12 170300010510 Reecer Creek and its tributaries
21 Swauk Creek Thorp to Ellensburg Reach 39 HUC 12 MERGE 170300010501

170300010502

Swauk Creek and its tributaries
22 Upper Canyon - Yakima River Mainstem Thorp to Ellensburg Reach 39 HUC12 170300010505 Yakima River from Teanawya River to Taneum Creek and all its tributaries except Swauk Creek
23 Thorp Reach - Yakima River Mainstem Thorp to Ellensburg Reach 39 HUC 12 MERGE 170300010506

170300010507

Yakima River from Taneum Creek to Manastash Creek and all its tributaries except Reecer Creek
24 Ellensburg Reach - Yakima River Mainstem Thorp to Ellensburg Reach 39 HUC12 SPLIT (170300010511) Yakima River and its tributaries from Manastash Creek to Wilson Creek
25 Wilson/Naneum Creek Ellensburg Area Watershed 39 HUC 12 MERGE 170300010401

170300010402

170300010408

Wilson Creek and all its tributaries except Coleman and Cherry Creeks
26 Coleman Creek Ellensburg Area Watershed 39 HUC12 170300010403 Coleman Creek and its tributaries
27 Cherry Creek Ellensburg Area Watershed 39 HUC 12 MERGE 170300010404

170300010405

170300010406

170300010407

170300010409

Cherry Creek and its tributaries
28 Yakima Canyon Yakima Canyon Reach 39 HUC 12 MERGE 170300010702

170300010703

170300010704

170300010705

170300010706

170300010707

170300010708

Yakima River from Wilson Creek to Selah Creek and all its tributaries except Umtanum Creek
29 Selah Reach - Yakima River Mainstem Yakima Canyon Reach 39 HUC12 170300010709 Yakima river from Selah Creek to the Naches River and all its tributaries except Wenas Creek
30 Umtanum Creek Yakima Canyon Reach 39 HUC12 170300010701 Umtanum Creek and its tributaries
31 Wenas Creek Wenas Watershed 39 HUC 12 MERGE 170300010601

170300010602

170300010603

170300010604

170300010605

Wenas Creek and its tributaries


WRIA 38 Naches Geographic Units

# Geographic Unit Mid-level Unit WRIA Source HUC12_List Description
32 Little Naches River Upper Naches Watershed 38 HUC 12 MERGE 170300020101

170300020102

170300020103

170300020109

Little Naches River and its tributaries
33 Bumping River Upper Naches Watershed 38 HUC12 MERGE 170300020104

170300020105

170300020108

Bumping River and its tributaries including Bumping Lake
34 American River Upper Naches Watershed 38 HUC12 SPLIT 170300020106

170300020107

American River and its tributaries
35 Upper Naches River Nile Reach 38 HUC12 MERGE 170300020201

170300020202

Naches River from Bumping River to Rock Creek
36 Nile Creek Nile Reach 38 HUC12 170300020203 Nile Creek and its tributaries
37 Rattlesnake Creek Nile Reach 38 HUC 12 MERGE 170300020204

170300020205

170300020206

Rattlesnake Creek and its tributaries
38 Middle Naches River (Nile) Nile Reach 38 HUC 12 MERGE 170300020207

170300020208

Naches River from Rock Creek to the Tieton and all its triburaties except Nile and Rattlesnake Creeks
39 Clear Creek Tieton Watershed 38 HUC12 170300020301 Clear Creek and its tributaries
40 North Fork Tieton River Tieton Watershed 38 HUC12 170300020302 Nort Fork Tieton River and Clear Lake and all their tributaries except Clear Creek
41 South Fork Tieton River Tieton Watershed 38 HUC 12 MERGE 170300020303

170300020304

South Fork Tieton River and its tributaries
42 Indian Creek Tieton Watershed 38 HUC12 SPLIT (170300020305) Indian Creek and its tributaries
43 Rimrock Lake Tieton Watershed 38 HUC12 SPLIT (170300020305) Rimrock Lake and all its tributaries except Indian Creek and the North and South Fork Tieton Rivers
44 Tieton River Tieton Watershed 38 HUC 12 MERGE 170300020306

170300020308

Tieton River and its tributaries from Rimrock Dam to the Naches River
45 Oak Creek Tieton Watershed 38 HUC12 170300020307 Oak Creek and its tributaries
46 Lower Naches River Lower Naches Reach 38 HUC12 170300020312 Lower Yakima River from the Tieton to the Yakima and all its tributaries except Cowiche Creek
47 Cowiche Creek Lower Naches Reach 38 HUC12 MERGE 170300020309

170300020310

170300020311

Cowiche Creek and its tributaries

WRIA 37 Lower Yakima Geographic Units

ADD LINKS FROM BELOW TO TABLE:

  1. Prosser Reach - Yakima River Mainstem
  2. Lower Yakima Reach - Yakima River Mainstem
  3. Spring and Snipes Creeks
  4. Corral Creek
  5. Cold Creek
  6. Amon Creek Wasteway
  7. Yakima Delta
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