Page: 6 of 6
Section: 26 of 28 2766 Listings
Sections: | 26 Th-Ty | | 27 Ty-Wh | | 28 Wh-Zo |
| Feature Name | County | Type | Latitude | Longitude | Alt | USGS 7.5' Map |
| The Gap | Humboldt | gap | 410545N | 1240246W | - | Crannell |
| The Great Break | Humboldt | other | 402612N | 1242811W | - | Cape Mendocino |
| The H J | Humboldt | ridge | 401511N | 1241859W | - | Petrolia |
| The Island | Humboldt | island | 401651N | 1240031W | 1699 | Bull Creek |
| The Narrows | Humboldt | gap | 401851N | 1240158W | - | Bull Creek |
| The Old Arrow Tree (historic landmark #164) | Humboldt | other | n/a | n/a | - | n/a |
| The Peaks | Humboldt | summit | 402155N | 1234651W | 3120 | Myers Flat |
| The Rain Rock | Humboldt | locale | 410027N | 1233828W | - | Hoopa |
| The Springs | Humboldt | pop place | 404756N | 1240205W | 1260 | Arcata South |
| The Twins | Humboldt | summit | 402446N | 1241901W | 2654 | Capetown |
| Third Creek | Humboldt | stream | 412052N | 1233523W | - | Arcata South |
| Thomas Hill | Humboldt | summit | 402124N | 1240420W | 31 | Orleans |
| Thompson Bluff | Humboldt | cliff | 402021N | 1235206W | - | Bull Creek |
| Thompson Creek | Humboldt | stream | 402507N | 1233726W | - | Dinsmore |
| Thompson Creek | Humboldt | stream | 402039N | 1235113W | - | Myers Flat |
| Thompson Creek | Humboldt | stream | 400000N | 1235613W | - | Bear Horbor |
| Thompson Field | Humboldt | flat | 401944N | 1235015W | - | Myers Flat |
| Thompson Prairie | Humboldt | area | 411355N | 1235548W | - | Bald Hills |
| Thorn | Humboldt | pop place | 400126N | 1235631W | 1024 | Briceland |
| Thorn Fire Control Station | Humboldt | locale | 400323N | 1235737W | - | Briceland |
| Thorn Junction | Humboldt | pop place | 400349N | 1235745W | 977 | Briceland |
| Thornbury Mountain | Humboldt | summit | 410942N | 1240139W | 2790 | Rodgers Peak |
| Three Brothers | Humboldt | island | 401934N | 1242126W | - | Petrolia |
| Three Cabins | Humboldt | locale | 404303N | 1235059W | 1482 | Mad River Buttes |
| Three Creeks | Humboldt | stream | 405515N | 1234147W | - | Willow Creek |
| Three Creeks Summit | Humboldt | summit | 405658N | 1234226W | 3119 | Willow Creek |
| Thurman Creek | Humboldt | stream | 402003N | 1234007W | - | Blocksburg |
| Tick Prairie | Humboldt | area | 410837N | 1235538W | - | Bald Hills |
| Ticknor Creek | Humboldt | stream | 400746N | 1233440W | - | Alderpoint |
| Tierney Canyon | Humboldt | valley | 402619N | 1233144W | - | Dinsmore |
| Tierney Peak | Humboldt | summit | 402611N | 1233350W | 5179 | Dinsmore |
| Tip Top Ridge | Humboldt | ridge | 405725N | 1235901W | - | Blue Lake |
| Tiptop Ridge | Humboldt | ridge | 405725N | 1235901W | - | Blue Lake |
| Tish Tang a Tang Creek | Humboldt | stream | 410133N | 1233820W | - | Hoopa |
| Tish Tang a Tang Ridge | Humboldt | ridge | 410223N | 1233207W | - | Tish Tang Point |
| Tish Tang Campground | Humboldt | locale | 410123N | 1233813W | - | Hoopa |
| Tish Tang Point | Humboldt | cape | 410332N | 1233138W | 4963 | Tish Tang Point |
| Tish Tang Recreation Site | Humboldt | locale | 410123N | 1233813W | - | Hoopa |
| Titlow Hill | Humboldt | summit | 405021N | 1234239W | 4960 | Grouse Mountain |
| Tlamath River | Humboldt | stream | 412056N | 1235230W | - | Johnsons |
| Tolkan Campground | Humboldt | locale | 400501N | 1240324W | - | Shelter Cove |
| Tom Creek | Humboldt | stream | 411030N | 1240613W | - | Rodgers Peak |
| Tom Gulch | Humboldt | valley | 404131N | 1240834W | - | Fields Landing |
| Tom Long Creek | Humboldt | stream | 400141N | 1234150W | - | Harris |
| Tom McDonald Creek | Humboldt | stream | 411226N | 1240034W | - | Rodgers Peak |
| Tomlinson Brothers Ranch | Humboldt | locale | 411004N | 1235445W | - | Bald Hills |
| Tompkins Hill | Humboldt | summit | 403743N | 1241047W | 800 | Fields Landing |
| Tooby Memorial Park | Humboldt | park | 400524N | 1234745W | - | Garberville |
| Torrey Corrals | Humboldt | locale | 403648N | 1233604W | - | Blake Mountain |
| Torrey Crossing | Humboldt | crossing | 403633N | 1233548W | 2940 | Blake Mountain |
| Torrey Ridge | Humboldt | ridge | 403658N | 1233513W | - | Blake Mountain |
| Toss-up Creek | Humboldt | stream | 405911N | 1235053W | - | Lord-Ellis Summit |
| Tostin Creek | Humboldt | stream | 401052N | 1235320W | - | Ettersburg |
| Toumey Grove | Humboldt | woods | 400111N | 1234709W | - | Garberville |
| Town Cemetery | Humboldt | cemetery | 403237N | 1240604W | - | Hydesville |
| Trail Creek | Humboldt | stream | 411513N | 1233044W | - | Orleans |
| Trail Ridge | Humboldt | ridge | 410618N | 1235024W | - | Hupa Mountain |
| Trappers Creek | Humboldt | stream | 404222N | 1233523W | - | Sims Mountain |
| Tri Board Camp | Humboldt | locale | 404150N | 1234315W | - | Board Camp Mountain |
| Triangle Marsh | Humboldt | swamp | 404058N | 1241223W | - | Fields Landing |
| Trinidad, Town of (historic landmark #216) (April 8, 1850) | Humboldt | pop place | 410334N | 1240831W | 170 | Trinidad |
| Trinidad Bay | Humboldt | bay | 410316N | 1240823W | - | Trinidad |
| Trinidad Harbor | Humboldt | harbor | 410320N | 1240846W | - | Trinidad |
| Trinidad Head (historic landmark #146) (June 11, 1775) | Humboldt | cape | 410314N | 1240908W | - | Trinidad |
| Trinidad Head Light | Humboldt | locale | 410307N | 1240901W | - | Trinidad |
| Trinidad Head Lighthouse | Humboldt | locale | 410307N | 1240901W | - | Trinidad |
| Trinidad Indian Reservation | Humboldt | reserve | 410318N | 1240747W | - | Trinidad |
| Trinidad State Beach | Humboldt | beach | 410356N | 1240857W | - | Trinidad |
| Trinity Bay | Humboldt | bay | 404500N | 1241230W | - | Eureka |
| Trinity Mountain | Humboldt | summit | 410156N | 1232444W | 6094 | Trinity Mountain |
| Trinity Mountain | Humboldt | summit | 410942N | 1240139W | 2790 | Rodgers Peak |
| Trinity River | Humboldt | stream | 411106N | 1234227W | - | Weitchpec |
| Trinity Summit Forest Service Facility | Humboldt | locale | 410425N | 1232746W | 6100 | Trinity Mountain |
| Trinity Summit Guard Station | Humboldt | locale | 410425N | 1232746W | 6100 | Trinity Mountain |
| Truss Creek | Humboldt | stream | 401702N | 1235323W | - | Weott |
| Tschura (historical) | Humboldt | pop place | 410335N | 1240831W | 160 | Trinidad |
| Tschura-Allequas (historical) | Humboldt | pop place | 410335N | 1240831W | 160 | Trinidad |
| Tsurai, Old Indian Village of (historic landmark #838) (historical) | Humboldt | pop place | 410335N | 1240831W | 160 | Trinidad |
| Tsurai Trail | Humboldt | trail | 410314N | 1240855W | - | Trinidad |
| Tsurau (historical) | Humboldt | pop place | 410335N | 1240831W | 160 | Trinidad |
| Tule Spring | Humboldt | spring | 403323N | 1234403W | - | Showers Mountain |
| Tully Creek | Humboldt | stream | 411345N | 1234619W | - | French Camp Ridge |
| Turip-hirrr Wroi | Humboldt | stream | 413018N | 1235757W | - | Klamath Glen |
| Turner Opening | Humboldt | area | 402328N | 1240325W | - | Scotia |
| Turtle Lake | Humboldt | lake | 402932N | 1234245W | - | Larabee Valley |
| Turtle Lake | Humboldt | lake | 411344N | 1234319W | - | Weitchpec |
| Turtle Rock | Humboldt | island | 410758N | 1241101W | - | Trinidad |
| Tuttle Buttes | Humboldt | summit | 400945N | 1234310W | 3648 | Fort Seward |
| Tuttle Creek | Humboldt | stream | 401005N | 1234652W | - | Miranda |
| Tuttle Ranch | Humboldt | locale | 400843N | 1234408W | - | Fort Seward |
| Twenty-Thirty Park | Humboldt | park | 404703N | 1241021W | - | Eureka |
| Twentyone Rock | Humboldt | pillar | 410355N | 1240525W | - | Crannell |
| Twin Creek | Humboldt | stream | 402715N | 1240414W | - | Scotia |
| Twin Lakes | Humboldt | lake | 404326N | 1234438W | - | Board Camp Mountain |
| Twin Lakes | Humboldt | lake | 411920N | 1234004W | - | Fish Lake |
| Twin Lakes Creek | Humboldt | stream | 404436N | 1234309W | - | Board Camp Mountain |
| Twin Peaks | Humboldt | summit | 402446N | 1241901W | 2654 | Capetown |
| Twin Rocks | Humboldt | island | 402644N | 1242501W | - | Cape Mendocino |
| Twomile Creek | Humboldt | stream | 410159N | 1234213W | - | Hoopa |
| Tyee City | Humboldt | pop place | 405521N | 1240732W | 10 | Tyee City |
Section: 27 of 28
| Feature Name | County | Type | Latitude | Longitude | Alt | USGS 7.5' Map |
| Tyson Creek | Humboldt | stream | 405835N | 1235741W | - | Blue Lake |
| Ullathorne Creek | Humboldt | stream | 411729N | 1233411W | - | Orleans |
| Uncle Tommy | Humboldt | summit | 401624N | 1241829W | 2131 | Petrolia |
| Union (historical) | Humboldt | pop place | 405200N | 1240454W | 33 | Arcata South |
| Union Town | Humboldt | pop place | 405200N | 1240454W | 33 | Arcata South |
| Union Town- Post Office (Est. Oct. 9, 1852) (name changed May 5, 1860 | Humboldt | post office | 405206N | 1240510W | - | Arcata South |
| Uniontown | Humboldt | pop place | 405200N | 1240454W | 33 | Arcata South |
| Up-pa goine (historical) | Humboldt | pop place | 411535N | 1233618W | 320 | Orleans |
| Up-pa-goines (historical) | Humboldt | pop place | 411535N | 1233618W | 320 | Orleans |
| Up-pa Mountain | Humboldt | summit | 410415N | 1234813W | 4093 | Hupa Mountain |
| Up-pah-goines (historical) | Humboldt | pop place | 411535N | 1233618W | 320 | Orleans |
| Upper Bull Creek Flat | Humboldt | flat | 402049N | 1235725W | - | Weott |
| Upper Bull Creek Ranger Station | Humboldt | locale | 402110N | 1240024W | - | Bull Creek |
| Upper Campbell Creek | Humboldt | stream | 405252N | 1233639W | - | Salyer |
| Upper East Fork Honeydew Creek | Humboldt | stream | 401134N | 1240812W | - | Shubrick Peak |
| Upper Gould Barn | Humboldt | building | 401725N | 1235946W | - | Weott |
| Upper Joe Green Cabin | Humboldt | locale | 404501N | 1234010W | - | Grouse Mountain |
| Upper North Fork Honeydew Creek | Humboldt | stream | 401134N | 1240813W | - | Shubrick Peak |
| Upper North Fork Mattole River | Humboldt | stream | 401436N | 1240748W | - | Shubrick Peak |
| Upper Peaked Prairie | Humboldt | flat | 402422N | 1241044W | - | Taylor Peak |
| Upper South Fork Little River | Humboldt | stream | 410134N | 1235939W | - | Panther Creek |
| Upper South Fork of Little River | Humboldt | stream | 410138N | 1240636W | - | Crannell |
| Van Arken Creek | Humboldt | stream | 400307N | 1235720W | - | Briceland |
| Van Arkin Creek | Humboldt | stream | 400307N | 1235720W | - | Briceland |
| Van Choick Ridge | Humboldt | ridge | 401855N | 1240930W | - | Buckeye Mountain |
| Van Duzen County Park | Humboldt | park | 402929N | 1235817W | - | Redcrest |
| Van Duzen Fork of Eel River | Humboldt | stream | 403255N | 1240936W | - | Fortuna |
| Van Duzen Public Camp (historical) | Humboldt | locale | 402912N | 1233534W | - | Dinsmore |
| Van Duzen River | Humboldt | stream | 403255N | 1240936W | - | Fortuna |
| Van Duzens Fork | Humboldt | stream | 403255N | 1240936W | - | Fortuna |
| Van Schoaick Ridge | Humboldt | ridge | 401855N | 1240930W | - | Buckeye Mountain |
| Van Sicklen Grove | Humboldt | woods | 401700N | 1235149W | - | Myers Flat |
| Vananken Creek | Humboldt | stream | 400307N | 1235720W | - | Briceland |
| Vanarkin Creek | Humboldt | stream | 400307N | 1235720W | - | Briceland |
| Vanauken Creek | Humboldt | stream | 400307N | 1235720W | - | Briceland |
| Vandusens Fork | Humboldt | stream | 403255N | 1240936W | - | Fortuna |
| Victor Creek | Humboldt | stream | 405617N | 1233717W | - | Salyer |
| Vincent Creek | Humboldt | stream | 405013N | 1235633W | - | Korbel |
| Vinum Park | Humboldt | park | 405225N | 1240452W | - | Arcata South |
| Vista Point | Humboldt | locale | 405829N | 1240659W | - | Arcata North |
| Waddington | Humboldt | pop place | 403402N | 1241202W | 37 | Fortuna |
| Wailaki Campground | Humboldt | locale | 400106N | 1240006W | - | Shelter Cove |
| Walker Butte | Humboldt | summit | 400208N | 1233531W | 2404 | Jewett Rock |
| Walker Buttes | Humboldt | summit | 400208N | 1233531W | 2404 | Jewett Rock |
| Walker Ridge | Humboldt | ridge | 400300N | 1233430W | - | Jewett Rock |
| Walker Ridge | Humboldt | ridge | 402308N | 1241845W | - | Capetown |
| Warden Creek | Humboldt | stream | 400319N | 1235104W | - | Garberville |
| Ware Ranch | Humboldt | locale | 401242N | 1233413W | - | Alderpoint |
| Ware Ranch | Humboldt | locale | 401243N | 1233415W | 1560 | Alderpoint |
| Warnersville | Humboldt | pop place | 410334N | 1240831W | 170 | Trinidad |
| Warnerville | Humboldt | pop place | 410334N | 1240831W | 170 | Trinidad |
| Warren Creek | Humboldt | stream | 405416N | 1240236W | - | Arcata North |
| Waseck | Humboldt | locale | 411312N | 1234437W | 1500 | Weitchpec |
| Waseck | Humboldt | pop place | 411301N | 1234515W | 800 | French Camp Ridge |
| Washington Gulch | Humboldt | valley | 405008N | 1240409W | - | Arcata South |
| Washington School (historical) | Humboldt | school | 405605N | 1240601W | - | Arcata North |
| Water Dog Lakes | Humboldt | lake | 410625N | 1232844W | - | Trinity Mountain |
| Water Gulch | Humboldt | valley | 410050N | 1240338W | - | Crannell |
| Waterbarrel Opening | Humboldt | flat | 403926N | 1233606W | - | Sims Mountain |
| Waterman Ridge | Humboldt | ridge | 405831N | 1233406W | - | Salyer |
| Waukell Creek | Humboldt | stream | 411521N | 1234636W | - | Johnsons |
| Weber Creek | Humboldt | stream | 402239N | 1235505W | - | Redcrest |
| Wedding Rock | Humboldt | island | 410826N | 1240948W | - | Trinidad |
| Wee-Yot | Humboldt | pop place | 401919N | 1235514W | 338 | Weott |
| Wee-yot | Humboldt | stream | 403830N | 1241840W | - | Cannibal Island |
| Weitchpec | Humboldt | pop place | 411118N | 1234226W | 400 | Weitchpec |
| Weitchpec Creek | Humboldt | stream | 411117N | 1234234W | - | Weitchpec |
| Weonme Flat | Humboldt | flat | 402830N | 1235304W | - | Redcrest |
| Weott | Humboldt | pop place | 401919N | 1235514W | 338 | Weott |
| West Fork Bear Creek | Humboldt | stream | 402332N | 1240111W | - | Scotia |
| West Fork Blue Creek | Humboldt | stream | 413053N | 1235608W | - | Klamath Glen |
| West Fork Bridge Creek | Humboldt | stream | 404144N | 1240445W | - | McWhinney Creek |
| West Fork Creek | Humboldt | stream | 400227N | 1235154W | - | Garberville |
| West Fork Honeydew Creek | Humboldt | stream | 401147N | 1240801W | - | Shubrick Peak |
| West Fork Luffenholtz Creek | Humboldt | stream | 410316N | 1240621W | - | Crannell |
| West Fork Pecwan Creek | Humboldt | stream | 412215N | 1234926W | - | Johnsons |
| West Fork Sproul Creek | Humboldt | stream | 400227N | 1235154W | - | Garberville |
| West Humboldt (historical) | Humboldt | pop place | 404604N | 1241302W | 5 | Eureka |
| West Point | Humboldt | cape | 404937N | 1241000W | - | Eureka |
| West Point Ranch (historical) | Humboldt | locale | 403038N | 1242233W | - | Ferndale OE W |
| West Ridge Trail | Humboldt | trail | 412318N | 1240134W | - | Fern Canyon |
| West Side Creek | Humboldt | stream | 402703N | 1241511W | - | Capetown |
| Westhaven | Humboldt | pop place | 410210N | 1240636W | 295 | Crannell |
| Westlund Creek | Humboldt | stream | 401342N | 1240225W | - | Honeydew |
| Westlund Place | Humboldt | pop place | 401402N | 1240058W | 1700 | Honeydew |
| Weymouth Inn | Humboldt | locale | 403152N | 1240953W | - | Fortuna |
| Weyo | Humboldt | pop place | 401919N | 1235514W | 338 | Weott |
| Whale Gulch | Humboldt | valley | 400052N | 1235918W | - | Briceland |
| White Oak Creek | Humboldt | stream | 404300N | 1233937W | - | Board Camp Mountain |
| White Oak Opening | Humboldt | flat | 404257N | 1234147W | - | Board Camp Mountain |
| White Ranch | Humboldt | locale | 400656N | 1233253W | - | Jewett Rock |
| White Rock | Humboldt | island | 410513N | 1240938W | - | Trinidad |
| White Rock Spring | Humboldt | spring | 404852N | 1234137W | - | Grouse Mountain |
| White Rocks | Humboldt | summit | 410452N | 1234902W | 3400 | Hupa Mountain |
| Whitethorn | Humboldt | pop place | 400126N | 1235631W | 1024 | Briceland |
| Whiteys Gulch | Humboldt | valley | 411715N | 1233301W | - | Orleans |
| Whiting Ridge | Humboldt | ridge | 403925N | 1233804W | - | Board Camp Mountain |
| Whiting Spring | Humboldt | spring | 403931N | 1233751W | - | Board Camp Mountain |
| Whitlow | Humboldt | pop place | 401855N | 1234746W | 200 | Myers Flat |
| Whitmore Creek | Humboldt | stream | 412008N | 1233037W | - | Orleans |
Section: 28 of 28
| Feature Name | County | Type | Latitude | Longitude | Alt | USGS 7.5' Map |
| Whittemore Grove | Humboldt | woods | 400720N | 1235053W | - | Garberville |
| Widow White Creek | Humboldt | stream | 405733N | 1240644W | - | Arcata North |
| Wike | Humboldt | bay | 404500N | 1241230W | - | Eureka |
| Wildcat Butte | Humboldt | summit | 401352N | 1234140W | 1739 | Fort Seward |
| Wildcat Creek | Humboldt | stream | 403351N | 1233751W | - | Showers Mountain |
| Wildcat Ridge | Humboldt | ridge | 403326N | 1241620W | - | Ferndale |
| Wilder Creek | Humboldt | stream | 412015N | 1233410W | - | Orleans |
| Wilder Gulch | Humboldt | valley | 411829N | 1233231W | - | Orleans |
| Wilder Ridge | Humboldt | ridge | 401106N | 1240516W | - | Honeydew |
| Wildwood | Trinity | pop place | 402401N | 1230311W | 3504 | Wildwood |
| Williams Creek | Humboldt | stream | 401027N | 1234651W | - | Miranda |
| Williams Creek | Humboldt | stream | 403522N | 1241416W | - | Fortuna |
| Williams Creek School (historical) | Humboldt | school | 403242N | 1241405W | - | Fortuna |
| Williams Grove | Humboldt | woods | 401638N | 1235257W | - | Weott |
| Williams Grove Trail | Humboldt | trail | 401647N | 1235327W | - | Weott |
| Williams Ridge | Humboldt | ridge | 411114N | 1235128W | - | French Camp Ridge |
| Willow Brook | Humboldt | stream | 404130N | 1241139W | - | Fields Landing |
| Willow Creek | Humboldt | pop place | 405623N | 1233749W | 640 | Willow Creek |
| Willow Creek | Humboldt | stream | 401439N | 1242029W | - | Cooskie Creek |
| Willow Creek | Humboldt | stream | 405642N | 1233745W | - | Willow Creek |
| Willow Creek Post Office (Est. April 27, 1878) (name changed May 3, 1915) | Humboldt | post office | 405627N | 1233742W | - | Willow Creek |
| Willow Draw Creek | Humboldt | stream | 401423N | 1234055W | - | Fort Seward |
| Wilson Creek | Humboldt | stream | 403149N | 1240400W | - | Hydesville |
| Wilson Creek | Humboldt | stream | 403845N | 1234802W | - | Mad River Buttes |
| Wilson Creek | Humboldt | stream | 411948N | 1233113W | - | Orleans |
| Wilson Ranch (historical) | Humboldt | locale | 404800N | 1234857W | 2960 | Maple Creek |
| Winchester Ridge | Humboldt | ridge | 401108N | 1234031W | - | Fort Seward |
| Windbigler Ranch | Humboldt | locale | 402211N | 1234349W | - | Blocksburg |
| Windy Creek | Humboldt | stream | 405255N | 1234806W | - | Lord-Ellis Summit |
| Windy Nip Gap | Humboldt | gap | 401601N | 1240512W | - | Bull Creek |
| Windy Ridge | Humboldt | ridge | 403725N | 1234018W | - | Showers Mountain |
| Wire Fence Opening | Humboldt | flat | 401956N | 1241155W | - | Buckeye Mountain |
| Wiregrass Prairie | Humboldt | area | 411144N | 1234817W | - | French Camp Ridge |
| Wiregrass Ridge | Humboldt | ridge | 405829N | 1235338W | - | Blue Lake |
| Wise Station | Humboldt | locale | 404257N | 1233456W | - | Sims Mountain |
| Wiyot | Humboldt | pop place | 401919N | 1235514W | 338 | Weott |
| Wolverton Gulch | Humboldt | valley | 403247N | 1240650W | - | Hydesville |
| Wood Ranch | Humboldt | locale | 400510N | 1233713W | - | Jewett Rock |
| Wood Ranch | Humboldt | locale | 400829N | 1234848W | - | Miranda |
| Woodland Echo Ranch (historical) | Humboldt | locale | 403052N | 1242103W | - | Ferndale |
| Woodland Trail | Humboldt | trail | 400135N | 1234749W | - | Garberville |
| Woodley Island | Humboldt | island | 404835N | 1240934W | - | Eureka |
| Woodley Island Marina | Humboldt | locale | 404828N | 1240940W | - | Eureka |
| Woods Creek | Humboldt | stream | 401352N | 1240854W | - | Shubrick Peak |
| Woods Mine | Humboldt | mine | 401217N | 1234214W | - | Fort Seward |
| Woods Ranch | Humboldt | locale | 400510N | 1233713W | - | Jewett Rock |
| Wool Mountain | Humboldt | summit | 400945N | 1233243W | 3498 | Alderpoint |
| Worswick | Humboldt | pop place | 403643N | 1241126W | 40 | Fortuna |
| Worthington School Number 2 (historical) | Humboldt | school | 404608N | 1240654W | - | Arcata South |
| Wreck of Northerner Historical Mark | Humboldt | park | 403413N | 1242102W | - | Ferndale |
| Wright Place | Humboldt | pop place | 411640N | 1234038W | 900 | Fish Lake |
| Yager Camp | Humboldt | locale | 403348N | 1240331W | - | Hydesville |
| Yager Creek | Humboldt | stream | 403132N | 1240427W | - | Hydesville |
| Yager Junction | Humboldt | pop place | 403254N | 1234924W | 2694 | Yager Junction |
| Yager Valley | Humboldt | valley | 403258N | 1235144W | - | Yager Junction |
| Yeager Creek | Humboldt | stream | 403132N | 1240427W | - | Hydesville |
| Yellow Jacket Butte | Humboldt | summit | 401458N | 1234117W | 1480 | Fort Seward |
| Yellow Jacket Spring | Humboldt | spring | 403747N | 1233851W | - | Board Camp Mountain |
| Youngs Lake | Humboldt | lake | 411314N | 1234257W | - | Weitchpec |
| Zanes Ranch | Humboldt | locale | 404306N | 1240958W | - | Fields Landing |
| Zanes Ranch Bridge | Humboldt | bridge | 404305N | 1241003W | - | Fields Landing |
| Zerus (historical) | Humboldt | pop place | n/a | n/a | - | n/a |
| Zigzag Trail | Humboldt | trail | 412334N | 1240131W | - | Fern Canyon |
| Zigzag Trail Three | Humboldt | trail | 412523N | 1240224W | - | Fern Canyon |
| Zigzag Trail Two | Humboldt | trail | 412523N | 1240224W | - | Fern Canyon |
| Zoreisch (historical) | Humboldt | pop place | 410335N | 1240831W | 160 | Trinidad |
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