Mazon River Near Coal City, Il Realtime Data
MAZON RIVER NEAR COAL CITY, IL
Realtime Data • Report • Conditions
15
Discharge (cfs)
1.1
Gauge Height (ft)
Streamflow discharge was last observed at 15 cfs, and a gauge height of 1.13 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 65 .
Weather today, Tomorrow,
The river is fed by precipitation, snowmelt, and groundwater. There are no major tributaries or dams along the Mazon River. The flow of the river is highly dependent on precipitation, resulting in seasonal trends with higher flows in the spring and lower flows in the summer and fall. Interestingly, the Mazon River is known for its unique fossils, including the Tully Monster, which lived in the river 307 million years ago. Overall, the hydrology of the Mazon River near Coal City, IL streamgauge is relatively simple, but the river's fossils make it a unique and interesting destination for paleontology enthusiasts.
August 10, 2026
| Elevation | 529.0 ft |
| Last Updated | |
| Gage height, ft | 1.13 ft |
| Streamflow, ft³/s | 14.5 ft3/s |
| Percent of Normal | 92% |
| Year Over Year Average | 16 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 18,600 cfs |
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