    <SEC-DOCUMENT>0001213900-25-097093-index.html : 20251007
    <SEC-HEADER>0001213900-25-097093.hdr.sgml : 20251007
    <ACCEPTANCE-DATETIME>20251007170705
    ACCESSION NUMBER:		0001213900-25-097093
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		21
    CONFORMED PERIOD OF REPORT:	20251001
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Unregistered Sales of Equity Securities
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20251007
    DATE AS OF CHANGE:		20251007

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Mountain Lake Acquisition Corp.
    		CENTRAL INDEX KEY:			0002029492
    		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
    		ORGANIZATION NAME:           	05 Real Estate & Construction
    		EIN:				981796213
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-42436
    		FILM NUMBER:		251380530

    	BUSINESS ADDRESS:
    		STREET 1:		930 TAHOE BLVD
    		STREET 2:		STE 802 PMB 45
    		CITY:			INCLINE VILLAGE
    		STATE:			NV
    		ZIP:			89451
    		BUSINESS PHONE:		(775) 204-1489

    	MAIL ADDRESS:
    		STREET 1:		930 TAHOE BLVD
    		STREET 2:		STE 802 PMB 45
    		CITY:			INCLINE VILLAGE
    		STATE:			NV
    		ZIP:			89451
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>ea0260486-8k425_mount.htm
    <DESCRIPTION>CURRENT REPORT
    <TEXT>
    Document 1 - file: ea0260486-8k425_mount.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-2.1
    <SEQUENCE>2
    <FILENAME>ea026048601ex2-1_mount.htm
    <DESCRIPTION>BUSINESS COMBINATION AGREEMENT, DATED AS OF OCTOBER 1, 2025, BY AND AMONG SPAC, PUBCO, SPAC MERGER SUB, COMPANY MERGER SUB, THE COMPANY AND THE SELLER
    <TEXT>
    Document 2 - file: ea026048601ex2-1_mount.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>3
    <FILENAME>ea026048601ex10-1_mount.htm
    <DESCRIPTION>SPONSOR SUPPORT AGREEMENT, DATED AS OF OCTOBER 1, 2025, BY AND AMONG SPONSOR, SPAC AND PUBCO
    <TEXT>
    Document 3 - file: ea026048601ex10-1_mount.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.2
    <SEQUENCE>4
    <FILENAME>ea026048601ex10-2_mount.htm
    <DESCRIPTION>FORM OF SPONSOR LOCK-UP AGREEMENT, BY AND AMONG PUBCO, SPONSOR, INSIDERS AND THE UNDERSIGNED HOLDERS THERETO
    <TEXT>
    Document 4 - file: ea026048601ex10-2_mount.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.3
    <SEQUENCE>5
    <FILENAME>ea026048601ex10-3_mount.htm
    <DESCRIPTION>FORM OF SELLER LOCK-UP AGREEMENT, BY AND BETWEEN PUBCO AND THE UNDERSIGNED HOLDERS THERETO
    <TEXT>
    Document 5 - file: ea026048601ex10-3_mount.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.4
    <SEQUENCE>6
    <FILENAME>ea026048601ex10-4_mount.htm
    <DESCRIPTION>FORM OF AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT, BY AND AMONG PUBCO, SPAC, SPONSOR AND THE UNDERSIGNED HOLDERS THERETO
    <TEXT>
    Document 6 - file: ea026048601ex10-4_mount.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.5
    <SEQUENCE>7
    <FILENAME>ea026048601ex10-5_mount.htm
    <DESCRIPTION>FORM OF COMPANY UNIT SUBSCRIPTION AGREEMENT, DATED AS OF OCTOBER 1, 2025, BY AND AMONG SPAC, PUBCO, THE COMPANY AND CERTAIN UNDERSIGNED SUBSCRIBER THERETO
    <TEXT>
    Document 7 - file: ea026048601ex10-5_mount.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>8
    <FILENAME>ea026048601ex99-1_mount.htm
    <DESCRIPTION>CONTRIBUTION AGREEMENT, DATED AS OF OCTOBER 1, 2025, BY AND AMONG THE SELLER, THE COMPANY, PUBCO, AVALANCHE BVI AND AVALANCHE CAYMAN
    <TEXT>
    Document 8 - file: ea026048601ex99-1_mount.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>9
    <FILENAME>ea026048601ex99-2_mount.htm
    <DESCRIPTION>TOKEN SALE AGREEMENT, DATED AS OF OCTOBER 1, 2025, BY AND AMONG THE COMPANY, PUBCO, AVALANCHE BVI AND AVALANCHE CAYMAN
    <TEXT>
    Document 9 - file: ea026048601ex99-2_mount.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>10
    <FILENAME>mlac-20251001.xsd
    <DESCRIPTION>XBRL SCHEMA FILE
    <TEXT>
    Document 10 - file: mlac-20251001.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>11
    <FILENAME>mlac-20251001_def.xml
    <DESCRIPTION>XBRL DEFINITION FILE
    <TEXT>
    Document 11 - file: mlac-20251001_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>12
    <FILENAME>mlac-20251001_lab.xml
    <DESCRIPTION>XBRL LABEL FILE
    <TEXT>
    Document 12 - file: mlac-20251001_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>13
    <FILENAME>mlac-20251001_pre.xml
    <DESCRIPTION>XBRL PRESENTATION FILE
    <TEXT>
    Document 13 - file: mlac-20251001_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>15
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 15 - file: R1.htm

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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>16
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 16 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>17
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 17 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>19
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 19 - file: FilingSummary.html

    Document 19 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>21
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 21 - file: MetaLinks.json

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    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>22
    <FILENAME>0001213900-25-097093-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 22 - file: 0001213900-25-097093-xbrl.zip

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    <TYPE>XML
    <SEQUENCE>23
    <FILENAME>ea0260486-8k425_mount_htm.xml
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    <TEXT>
    Document 23 - file: ea0260486-8k425_mount_htm.html

    Document 23 - RAW XML: ea0260486-8k425_mount_htm.xml

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