Upper Colonnade Falls
Heading out after dark — bring lights and take extra care.
Healthy flow
Nearest gauge: FALL RIVER AB YELLOWSTONE CANAL NR SQUIRREL ID · 25.6 km · USGS · 484 cfs now vs ~579 normal
Clear skies
Great visibility and dry footing.
After dark
The sun is down — bring lights and take care.
Late-season
Many falls slow down by late summer.
Healthy flow — 84% of normal
Nearest gauge: FALL RIVER AB YELLOWSTONE CANAL NR SQUIRREL ID (25.6 km)
Quieter weekday
Fewer people midweek.