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Mossyrock GMU 505 black bear hunting: harvest, season and land

WDFW's harvest report shows 5 black bears taken in GMU 505 Mossyrock in 2025. 142 bear hunters reported 1,157 days here, a success rate of 3.6% by WDFW's count. GMU 505 is 3.4% public land open to hunting, the largest share DNR state trust land (6,282 acres), measured from WA DNR's public land maps.

Data updated October 2026. Harvest: WDFW reports for 1997 to 2025. Seasons and permits: WDFW's 2026 pamphlet with its April 2026 corrections. Land: WA DNR, 2026-10.

Map of Washington GMU 505 Mossyrock: public land by manager, neighboring GMUs 530, 501, 520, 503, 510 and 667, highways I-5, US 12, SR 122 and SR 505, and Centralia, Chehalis, Winlock, Napavine and Morton

National forestDNR state trust landWDFW landOther public (parks, county, city, other agencies)GMU 505Neighboring GMUsLake or riverHighway

GMU 505 Mossyrock black bear at a glance
WDFW regionRegion 5, Southwest Washington
Size189,663 acres (296 square miles)
Public land open to hunting3.4% (6,494 acres)
Black bears taken, 20255 (5 in 2024)
Bear hunters, 2025142
2026 fall seasonAugust 1-November 15, bag limit 2 (Bear Management Unit 11, Mount St. Helens)
Towns in and near itChehalis, Morton, Mossyrock, Napavine, Centralia and Winlock

Also for GMU 505: elk hunting, deer hunting.

How many black bears are taken in GMU 505?

WDFW reports 5 black bears taken in GMU 505 in 2025, against 5 in 2024. The most in one year since 1997 was 21, in 2017. WDFW's figures average 8 a year for 2021 to 2025, against 11 a year for 2016 to 2020.

YearBears taken, general seasonMalesFemalesBear huntersHunter daysSuccess
20255231421,1573.6%
20245321721,5303%
2023141131791,4557.8%
20228621048337.6%
20216601541,7463.8%
2020129311088311%
20199631129188%
201811471581,9347%
20172117413791715%
20163301057652.8%
20156331609673.8%
20149811731,1555.2%
201310641691,1305.9%
20122111531,2431.3%
20114001801,2222.2%
201010642111,8184.7%
200916882281,7037%
200811742672,0394%
20079902091,2974.3%
200610912001,4155%
20056511881,3383.2%
200410911911,3805.2%
20038441911,2634.2%
200210372822,0783.5%
200114773062,2384.6%
200012846823,4472%
19998535824,8511%
19986422481,6922%
19976601328035%

Source: WDFW Game Harvest Reports (black bear, GMU 505, 1997 to 2025), read through WDFW's Hunt Planner harvest table. Success is WDFW's own figure. The averages above are of WDFW's yearly figures.

When is bear season in GMU 505 in 2026?

GMU 505 is in Bear Management Unit 11, Mount St. Helens, which also takes in GMUs 520, 524, 550, 554, 556 and 667. The 2026 fall general season there runs August 1-November 15, and the bag limit is 2. It is illegal to shoot a cub or a female with cubs, and every successful bear hunter must send WDFW the bear's first premolar tooth.

Source: WDFW 2026 Big Game Hunting Seasons and Regulations, page 68.

How much public land is in GMU 505?

3.4% of GMU 505 is public land open to hunting under its manager's rules: 6,494 of its 189,663 acres. The largest share is DNR state trust land, 6,282 acres or 3.3% of the unit. DNR trust land covers 6,282 acres; a Discover Pass is needed to hunt it.

ManagerAcresShare of GMU 505
DNR state trust land6,2823.3%
Other public (parks, county, city, other agencies)1,2770.7%
WDFW land2110.1%
National forest1under 0.1%

WDFW wildlife area land in GMU 505, by WDFW's own boundaries: Cowlitz Wildlife Area (11,132 acres here; units Kosmos, Riffe Buffer, Peterman Ridge and Davis Lake).

Measured by FilledTag inside WDFW's GMU boundary (WDFW game management units, in effect April 1, 2026 to March 31, 2027) from WA DNR Major Public Lands (non-DNR) and WA DNR Managed Land Parcels, read 2026-10. Tribal land is not counted as public. National wildlife refuges, military land and "other public" land (state parks, county, city and other agencies) are not counted as open to hunting: each sets its own rules.

How do you get to GMU 505?

Highways through the unit: US 12 (about 52 miles inside it), SR 508 (about 29 miles inside it), I-5 (about 24 miles inside it), SR 122 (about 8 miles inside it) and SR 505 (about 4 miles inside it). Towns inside: Chehalis, Morton, Mossyrock, Toledo and Onalaska. Nearby: Napavine (on the line), Centralia (on the line), Winlock (2 miles) and Vader (3 miles).

Which GMUs border GMU 505?

GMU 505 touches 7 other GMUs. Their public land and WDFW's 2025 black bear numbers, for comparison:

GMUNamePublic landBlack bears taken, 2025Bear hunters, 2025
GMU 501Lincoln21.8%6185
GMU 503Randle11.1%5126
GMU 510Stormking32.6%681
GMU 516Packwood92.9%24224
GMU 520Winston13.8%8234
GMU 530Ryderwood13.6%12412
GMU 667Skookumchuck13.8%21462

Questions hunters ask

When is bear season in GMU 505 in 2026?

GMU 505 is in WDFW's Bear Management Unit 11 (Mount St. Helens), where the 2026 fall general season runs August 1-November 15 with a bag limit of 2, by the pamphlet's table on page 68. It is illegal to shoot a cub or a female with cubs.

How many bears are taken in GMU 505?

WDFW reports 5 black bears taken in GMU 505 in 2025 (2 males, 3 females). The most in one year since 1997 was 21, in 2017.

How much public land is in GMU 505?

3.4% of GMU 505, 6,494 of its 189,663 acres, is national forest, BLM, DNR trust, WDFW, Reclamation or national recreation area land; the largest share is DNR state trust land. Measured by FilledTag from WA DNR's public land maps.

What town is closest to GMU 505?

Chehalis, Morton and Mossyrock are inside the unit. Just outside: Napavine (on the line), Centralia (on the line) and Winlock (2 miles).

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Where these numbers come from

FilledTag is not part of Washington Department of Fish and Wildlife. Numbers are copied from WDFW and the State of Washington, or measured from their maps; nothing on this page is estimated by FilledTag. WDFW's regulations are the final word on every rule.