v3.26.1
Cover
Jun. 11, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jun. 11, 2026
Entity File Number 001-42436
Entity Registrant Name Mountain Lake Acquisition Corp.
Entity Central Index Key 0002029492
Entity Tax Identification Number 98-1796213
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One 930 Tahoe Blvd STE 802
Entity Address, Address Line Two PMB 45
Entity Address, City or Town Incline Village
Entity Address, State or Province NV
Entity Address, Postal Zip Code 89451
City Area Code 775
Local Phone Number 204 1489
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false