This feature was destroyed in the 2013 floods. The feature has been reborn in 2018.
The October Hole is a small play feature in Lyons that can sometimes be found running in the late season.
Diversions above this feature mean the flows differ from the gauge on St. Vrain in Lyons.
Add together the first two gauges below and the subtract the third:
http://www.dwr.state.co.us/SurfaceWater/data/detail_graph.aspx?ID=SVCLYOCO&MTYPE=DISCHRG
http://www.dwr.state.co.us/SurfaceWater/data/detail_graph.aspx?ID=SVSLYOCO&MTYPE=DISCHRG
http://www.dwr.state.co.us/SurfaceWater/data/detail_graph.aspx?ID=BFCLYOCO&MTYPE=DISCHRG
| KSC | |
| Class | II |
| Current Flow |
525.0 CFS 12-05-2024 02:22 |
| Recommended Flow |
Minimum: 80.0 Average: 250.0 Maximum: 500.0 |
| Typical Season |
Begins: May Ends: October |
| Recommended Use |
Kayaking: Yes Rafting: No Canoeing: No SUP: No Packrafting: No Fishing: No |
| Primary Gauge | ([SAINT VRAIN CREEK AT LYONS, CO] + [SAINT VRAIN SUPPLY CANAL NEAR LYONS, CO]) - [BOULDER CREEK FEEDER CANAL NEAR LYONS] |
| Length | Mile(s) |
| Gradient | FPM |
