| Prairie Du Chien Dolostone Thicker Than 30 Feet With Excellent Reliability |
| Prairie Du Chien Dolostone Thicker Than 30 Feet With Fair Reliability |
| Prairie Du Chien Dolostone Thicker Than 30 Feet With Good Reliability |
| Prairie Du Chien Dolostone 10 - 30 Feet Thick With Excellent Reliability |
| Prairie Du Chien Dolostone 10 - 30 Feet Thick With Fair Reliability |
| Prairie Du Chien Dolostone 10 - 30 Feet Thick With Good Reliability |
| Prairie Du Chien Dolostone Less Than 10 Feet Thick With Excellent Reliability |
| Prairie Du Chien Dolostone Less Than 10 Feet Thick With Fair Reliability |
| Prairie Du Chien Dolostone Less Than 10 Feet Thick With Good Reliability |
| Quarry: Large quarry, or area of more than one quarry |
| Blank - Limited Potential for Crushed Stone |