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Matt Nolan
CRREL Permafrost Tunnel 5m into winze
Matt Nolan
CRREL Permafrost Tunnel 45m into adit
Matt Nolan
CRREL Permafrost Tunnel 35m into adit
Matt Nolan
CRREL Permafrost Tunnel 50m into adit
Matt Nolan
CRREL Permafrost Tunnel -- 65m into adit
Matt Nolan
CRREL Permafrost Tunnel -- 15m into adit
Matt Nolan
CRREL Permafrost Tunnel 70m into adit
Matt Nolan
CRREL Permafrost Tunnel 30m into adit
Matt Nolan
CRREL Permafrost Tunnel 60m into adit
Matt Nolan
CRREL Permafrost Tunnel 23m into adit
Matt Nolan
CRREL Permafrost Tunnel 15 meters into winze
Matt Nolan
CRREL Permafrost Tunnel 25 meters into winze
Matt Nolan
CRREL Permafrost Tunnel 21m into winze
Matt Nolan
CRREL Permafrost Tunnel 35 meters in winze
Matt Nolan
CRREL Permafrost Tunnel 40 meters in winze
Matt Nolan
CRREL Permafrost Tunnel 41 meters into winze
Matt Nolan
CRREL Permafrost Tunnel 70 meters into winze
Matt Nolan
CRREL Permafrost Tunnel 45 meters into winze
Matt Nolan
CRREL Permafrost Tunnel 50 meter into winze
Matt Nolan
Fox Permafrost Tunnel Extension Drilling to 4m
Matt Nolan
Fox Permafrost Tunnel Extension Drilling to 15m from Bulkhead
Matt Nolan
Fox Permafrost Tunnel Extension Drilling to 15m
Vlastislav Tauterman
Early humans in a cave - Anthropos
Vlastislav Tauterman
Mammoth and baby in Anthropos