TABLE OF DISTANCES.—TOTAL, 607 MILES.
| THE ROCK RIVER. | |
| MILES. | |
| Madison to Stoughton | 22 |
| Stoughton to Janesville | 40 |
| Janesville to Beloit | 18 |
| Beloit to Rockford | 40 |
| Rockford to Byron | 18 |
| Byron to Oregon | 15 |
| Oregon to Dixon | 31 |
| Dixon to Sterling | 20 |
| Sterling to Como | 9 |
| Como to Lyndon | 14 |
| Lyndon to Prophetstown | 5 |
| Prophetstown to Erie Ferry | 10 |
| Erie Ferry to Coloma | 25 |
| Coloma to mouth of river | 14 |
| Mouth of river to Rock Island (up Mississippi River) | 6 |
| Total | 287 |
| THE WISCONSIN RIVER. | |
| MILES. | |
| Portage to Merrimac | 20 |
| Merrimac to Prairie du Sac | 10 |
| Prairie du Sac to Arena Ferry | 15 |
| Arena Ferry to Helena | 8 |
| Helena to Lone Rock Bridge | 14 |
| Lone Rock Bridge to Muscoda | 18 |
| Muscoda to Port Andrew | 9 |
| Port Andrew to Boscobel | 10 |
| Boscobel to Boydtown | 10 |
| Boydtown to Wauzeka (on Kickapoo) | 7 |
| Wauzeka to Wright's Ferry | 10 |
| Wright's Ferry to Bridgeport | 4 |
| Bridgeport to mouth of river | 7 |
| Mouth of river to Prairie du Chien(up Mississippi River) | 5 |
| Total | 145 |
Note.—The above table of distances by water is based upon the most reliable local estimates, verified, as far as practicable, by official surveys.
THE ROCK RIVER.
MAP OF THE ROCK RIVER to accompany THWAITES'S "HISTORIC WATERWAYS"