| In springs of average to high runoff, a few drainages may prove unfordable, requiring a detour. |
| Knowing the river below as unfordable, the 22 Scouts rushed the bridge and put out the flames, despite an enfilading fire from some 600 Insurgents. |
| The two camps were separated by a swift and unfordable glacier stream known as Johnson Creek. |
| Delays of many days were typical when rivers and streams, swollen by rains, were made unfordable by flooding. |
| Snow and rain have raised the normally placid Jordan River to unfordable levels. |
| It was a jagged wasteland of ovenlike heat, frantic mosquitoes, and unfordable, unsanitary rivers. |
