States / AK / Unit 20F

Unit 20F, Alaska

Game found here

{"name": "Moose", "scientific_name": "Alces alces gigas"}{"name": "Caribou", "scientific_name": "Rangifer tarandus granti"}{"name": "Brown/Grizzly Bear", "scientific_name": "Ursus arctos"}{"name": "Black Bear", "scientific_name": "Ursus americanus"}{"name": "Wolf", "scientific_name": "Canis lupus"}

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Unit info

Game species: {"name": "Moose", "scientific_name": "Alces alces gigas"}, {"name": "Caribou", "scientific_name": "Rangifer tarandus granti"}, {"name": "Brown/Grizzly Bear", "scientific_name": "Ursus arctos"}, {"name": "Black Bear", "scientific_name": "Ursus americanus"}, {"name": "Wolf", "scientific_name": "Canis lupus"}
Group: N/A
Area: 6,230 mi²
Public land: 97%

Moose — season & harvest

Reported harvest: 26

Draw odds for Moosearen't on file for this unit yet. Check your state wildlife agency website for current draw statistics.

moose — season & harvest

Tag type: Registration Permit RM781 (residents only — no draw required; pick up online at hunt.alaska.gov or at ADF&G offices in Fairbanks, Delta Junction, Tok, Minto, or Tanana beginning July 1)
Reported harvest: Low; unit-wide moose population estimated at 1,000–2,000 animals (ADF&G historic survey). Subsistence harvest by local communities accounts for significant portion of annual take.
Archery season: No separate archery season listed for Unit 20F moose
General season: Sub-area dependent: Yukon drainage downstream from Hess Creek — Sept 5–Sept 25 + Dec 1–Dec 15; Tanana River drainage — Sept 5–Sept 25; Remainder — Sept 1–Sept 15
Muzzleloader season: No separate muzzleloader season listed for Unit 20F moose

Hunting notes

Spot-and-stalk or calling from riverboat or float-in camps. September rut is prime — bulls respond to cow calls and antler-raking. Most hunting done from skiffs on the Yukon and Tozitna Rivers or fly-in spike camps. Pack-out by floatplane is standard. Meat spoilage risk is real; cool September temperatures help. Low density means covering significant ground.

Draw odds for moosearen't on file for this unit yet. Check your state wildlife agency website for current draw statistics.

Caribou — season & harvest

Reported harvest: 1

Draw odds for Caribouaren't on file for this unit yet. Check your state wildlife agency website for current draw statistics.

caribou — season & harvest

Tag type: Harvest Ticket (east of Dalton Hwy, north of Yukon) or Registration Permit RC860 (east of Dalton Hwy, south of Yukon — Fortymile/White Mtn herds)
Reported harvest: Highly variable with Fortymile herd movement (herd historically 50,000–70,000 animals). High harvest possible when herd crosses the unit; near-zero in years when migration routes shift.
Archery season: No separate archery season
General season: East of Dalton Hwy, north of Yukon: Aug 10–Sept 20 (one bull, HT); East of Dalton Hwy, south of Yukon: Aug 10–Sept 30 (one bull, HT) or Aug 10–Mar 31 (one caribou, RC860)
Muzzleloader season: No separate muzzleloader season

Hunting notes

Intercept hunting along known migration corridors in eastern 20F (east of Dalton Highway). Migration timing is unpredictable — Fortymile herd can transit rapidly. Glassing from ridgelines or elevated ground. Dalton Highway provides vehicle access to the eastern boundary but firearms are prohibited within DHCMA. Most productive approach is fly-in or snowmachine access to intercept herds away from the highway.

Draw odds for caribouaren't on file for this unit yet. Check your state wildlife agency website for current draw statistics.

brown_bear — season & harvest

Tag type: Permit — available online at hunt.alaska.gov or in person at Delta Junction, Tok, Fairbanks offices beginning July 16
Reported harvest: Low; remote access and mandatory guide requirement for nonresidents limits pressure.
Archery season: No separate archery season
General season: Units 20C/20F: one brown bear per regulatory year by permit
Muzzleloader season: No separate muzzleloader season

Hunting notes

Still-hunting and stalking in spring (post-den emergence May–June) or fall (pre-den Aug–Sept). Riparian corridors along Yukon and Tozitna Rivers are key habitat. Bears also concentrate on salmon streams in late summer.

Draw odds for brown_beararen't on file for this unit yet. Check your state wildlife agency website for current draw statistics.

Season & harvest data is published for Moose, moose, Caribou, caribou, brown_bear so far. {"name": "Moose", "scientific_name": "Alces alces gigas"}, {"name": "Caribou", "scientific_name": "Rangifer tarandus granti"}, {"name": "Brown/Grizzly Bear", "scientific_name": "Ursus arctos"}, {"name": "Black Bear", "scientific_name": "Ursus americanus"}, {"name": "Wolf", "scientific_name": "Canis lupus"} also occur here — that data can be added as the community contributes.

About this unit

AI-compiled · sourced

Unit 20F is the "remainder" of Alaska's Interior Game Management Unit 20, covering the vast Yukon River drainage west of the Dalton Highway corridor — including the Tozitna River, Hess Creek, Ray River, and lower Yukon drainages stretching toward the Nulato Hills and Andreafsky Mountains. It is a remote, roadless unit dominated by boreal spruce-hardwood forest, black spruce muskegs, and transitional tundra that is accessible primarily by floatplane, riverboat, or snowmachine. Moose are the primary big-game target under a residents-only registration permit (RM781), with nonresidents currently closed to moose hunting in 20F; caribou from the Fortymile and White Mountains herds are available to both residents and nonresidents via harvest ticket or registration permit (RC860) in the eastern portions of the unit.

Terrain & elevation

Interior boreal lowlands and hills. Nearly all of Unit 20F is below 2,000 ft elevation. The unit spans the Yukon River floodplain and its western tributary drainages (Tozitna, Nowitna, Hess Creek, Ray River) transitioning westward into the rolling Nulato Hills and Andreafsky Mountains — the westernmost significant relief in Interior Alaska. Terrain includes braided glacial river bottoms, black spruce muskegs on permafrost, upland white and black spruce-birch-aspen forest, and shrub tundra ridges above treeline. The DHCMA (Dalton Highway Corridor Management Area) defines the eastern boundary of most hunting access; portions of Unit 20F are within an active predator control area (wolf management).

Access & public land

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Vegetation & habitat

White spruce–paper birch–quaking aspen forest dominates uplands. Black spruce muskegs are widespread on permafrost flatlands. Riparian corridors support dense willow and alder — critical moose browse habitat. Shrub tundra (dwarf birch, Labrador tea, sedge tussocks) covers higher ridges in the Nulato Hills. Extensive wetlands and oxbow lakes along Yukon River floodplain provide habitat diversity.

Wildlife movement

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Notes

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Sources

Questions, tips & discussion

Ask anything about Unit 20F— or drop a tip or trick: access points, where game holds, glassing spots, conditions, crowding, gear that worked. This is where the unit's species-specific intel gets built, hunter by hunter.

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Boundaries: ADFG official Game Management Units. Community info last updated 24d ago.