LaSalle County topographic maps

Average elevation: 587 ft

Average elevation: 594 ft

Average elevation: 587 ft

Average elevation: 636 ft

Average elevation: 669 ft

Streator lies within the Vermilion River/Illinois River Basin Assessment Area (VRAA) defined by the watershed of the Vermilion River, a major tributary to the Illinois River in Central Illinois, an area of mostly flat prairie. The topography of the basin is a complex collection of buried valleys, lowlands and…

Average elevation: 627 ft

Average elevation: 682 ft

Average elevation: 669 ft

Average elevation: 656 ft

Average elevation: 591 ft

Average elevation: 699 ft

Average elevation: 574 ft

Average elevation: 568 ft

Average elevation: 630 ft

Average elevation: 581 ft

Average elevation: 620 ft

Average elevation: 702 ft