Denali National Park & Preserve · National Park Service
Is the Ursack Major legal in Denali National Park & Preserve?
Legal
Yes, as an IGBC-certified bag, with tie-off rules.
BRFC required in backcountry units 1-21 and 23-43. IGBC-certified. Soft-sided: follow manufacturer tie-off instructions.
Heads-up before you rely on this
Rules change. Confirm with the land manager (links below) before you go.
What this means
Soft-sided bags work only if you follow the manufacturer's tie-off instructions, and the Denali National Park & Preserve text does not make an exception for terrain with no trees.
This area accepts containers certified by the Interagency Grizzly Bear Committee (IGBC). Check the IGBC certified products list, not the brand's marketing, to see whether a model qualifies.
Seasonal rule. The requirement applies on the dates in the source: Apr 15 - Sep 30. We do not have a recorded rule for other dates, so check the current page for shoulder-season trips.
About this model. Soft-sided; IGBC-certified but not allowed where a hard-sided canister is required (e.g.
The rule in Denali National Park & Preserve
- Requirement
- BRFC required in backcountry units 1-21 and 23-43.
- Accepted
- NPS page reproduces IGBC list (April 2026 IGBC product list; includes Ursack)
- Dates
- Apr 15 - Sep 30
- Source updated
- 2026-05-05
- Checked
- 2026-10-26 · verified
- Our notes
- Denali's list is a copy of the IGBC list; models newer than April 2026 may be missing.
About the Ursack Major
- Volume
- 10.65 L
- Weight
- 7.6 oz
- Material
- UHMWPE/Spectra fabric
- IGBC certified
- Yes (cert. 3738)
- On Yosemite / SEKI list
- No
- On Olympic list
- No
- Spec source
- search summary of ursack.com pages
Specs come from the sources named in "Spec source" and many are incomplete. See every area where the Ursack Major is accepted or not →
What else works in Denali National Park & Preserve
| Canister | Verdict | Weight | Volume |
|---|---|---|---|
| BearVault BV ONE Adjustable | Legal | 1 lb 15 oz (895 g) | 8.3 expanded / 4.65 collapsed L |
| BearVault BV425 Sprint | Legal | 1 lb 12 oz | 5 L |
| BearVault BV450 Jaunt | Legal | 2 lb 1 oz | 7.2 L |
| BearVault BV475 Trek | Legal | 2 lb 4 oz | 9.3 L |
| BearVault BV500 Journey | Legal | 2 lb 9 oz (1.16 kg) | 11.5 L |
| Grub Can Wave 6.6 L | Legal | 1 lb 15 oz | 6.6 L |
The Ursack Major under nearby rules
- Rocky Mountain National Park Hard-sided, lockable, commercially made canister required for wilderness overnight camping; hanging not permit… Not legal
- Mount Rainier National Park Hang or use food-storage poles; canister highly recommended in sub-alpine areas, not required. No canister rule
- Sequoia & Kings Canyon NPs - Pear & Emerald Lakes Canister required in the Pear and Emerald Lakes areas. Not legal
- Sequoia & Kings Canyon NPs - Rae Lakes Loop Canister required in the Rae Lakes Loop. Not legal
- Gates of the Arctic National Park & Preserve Approved food storage required; BRFCs loaned; purchases must be IGBC approved. Legal
- Wrangell-St. Elias National Park & Preserve BRFC required; IGBC-approved plus named PVC/aluminum canisters (Garcia, Wild Ideas, Purple Mountain). Legal
Quick answers
Is the Ursack Major legal in Denali National Park & Preserve?
Yes, as an IGBC-certified bag, with tie-off rules. BRFC required in backcountry units 1-21 and 23-43. IGBC-certified. Soft-sided: follow manufacturer tie-off instructions.
What does Denali National Park & Preserve require for food storage?
BRFC required in backcountry units 1-21 and 23-43. Accepted standard: NPS page reproduces IGBC list (April 2026 IGBC product list; includes Ursack).
How current is this answer?
We checked Denali National Park & Preserve's official source on 2026-10-26. Rules change, so confirm with the land manager before you go.
Sources and date checked
Checked . We link the official pages so you can read the rule yourself.