Gauge Description:

There is a stick gage at the put-in at Little Boulder Campground upstream of the bridge. 3.0' is a minimum boatable flow. Above 5', the canyon gets very pushy and the individual rapids approach class 5.
There is also an online USGS real-time gage, but the gage is 30 miles downstream from the Canyon put-in, and it's tough to correlate boatable flows for this run based on online gage readings. That said, if the online gage reads anything over ~1,000 cfs, the Canyon is probably running.

POTLATCH RIVER BEL LITTLE POTLATCH CR NR SPALDING [ ID ]

Current Conditions Stage Flow Updated 4.14 8.9 9/6 12:15

Linked Reaches

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Level Legend:

Running

Below Minimum Recommended Flow

Above Maximum Recommended Flow

Unknown

Descriptions of reaches with River Name in bold have been verified by a regional StreamTeam member.

State	River Name/Section	Class	Level	Rel. Level	Updated
ID	Big Bear— Highway 8 Bridge (West of Deary) to Kendrick High School	IV-V	9 cfs	low	9/6 12:15
ID	Little Potlatch River— Headwaters to Potlatch River	IV-V	9 cfs	low	9/6 12:15
ID	Potlatch— 1. Little Boulder Campground to Cedar Creek	II-V	9 cfs		9/6 12:15
ID	Potlatch— 2. Frog Pond to Kendrick	II-III	9 cfs	low	9/6 12:15

Station Description

AW Gauge ID:	8164
USGS Station:	13341570
HUC:	17060306
Latitude:	46.4986
Longitude:	-116.7619
Class: