See inside a Minnesota bat cave


Little brown bat
1 Little brown bat 
Mark White
2 Mark White 
Bat entrance
3 Bat entrance 
Stalactites
4 Stalactites 
Mystery cave
5 Mystery cave 
Turquoise Lake
6 Turquoise Lake 
Cave entrance
7 Cave entrance 
Little brown bats
8 Little brown bats 
Fossil marks
9 Fossil marks 
Cave formation
10 Cave formation 
Tricolor bat
11 Tricolor bat