-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Introductory Geology class at the gravel pit near Little Chicago, Minnesota
-
The Geology In The Field class at Sogn, Minnesota
-
The Geology In The Field class at Sogn, Minnesota
-
The Geology In The Field class at Sogn, Minnesota
-
The Geology In The Field class at Sogn, Minnesota
-
The Geology In The Field class at Sogn, Minnesota
-
The Geology In The Field class at Sogn, Minnesota
-
The Geology In The Field class at Sogn, Minnesota
-
The Geology In The Field class at Sogn, Minnesota
-
The Geology In The Field class at Sogn, Minnesota
-
The Geology In The Field class at Sogn, Minnesota
-
The Geology In The Field class at Sogn, Minnesota