There is a Tatshenshini gauge maintained by the Water Survey of Canada's waterweb. It's not a real-time station, but you can view past discharge data (be sure to select discharge as the parameter type; to convert to cfs multiply by 35.7). There are two Alsek River real-time gauges: near the take-out, below the Tatshenshini confluence, and above the confluence, above Bates River.
| When | River/Gauge | Subject | Level | Reporter |
|---|---|---|---|---|
| 6y157d07h27m | Alsek River [AK] |
Alsek River Hazard/Thing of Beauty |
9000cfs | Craig Irwin |