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Survey SiteHistorical spawn

Morrison Creek

NE shore, Upper Arm. Listed in USFWS Species Status Assessment as a historical hitch spawning tributary. NE shore monitoring gap.

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Creek Conditions
Current Season Status
Morrison Creek does not have a dedicated USGS streamflow gauge. Conditions are assessed through CDFW and Lake County WPD visual surveys and the lake-wide spawn phase indicator below.
Spawning Phase
Auto-calculated
Off
season
Post-spawn · next year builds now
Updates on page load
Clear Lake Level
USGS 11450000
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USGS lake level record ↗
Report Stranded Hitch
Rescue Team
(707)
263-2344
If you spot hitch stranded in a dry or disconnected section, call immediately. Permits are required; do not attempt relocation yourself.
Call Rescue Team
About This Creek

Morrison Creek

Listed in USFWS Species Status Assessment as a historical hitch spawning tributary. NE shore monitoring gap.

Enters the northeast shoulder of the Upper Arm. Listed in USFWS SSA as a historical hitch spawning tributary.

Morrison Creek is part of the North & Upper Arm, one of several tributaries that drain this part of the watershed.

Key Data
Historical spawningDocumented (USFWS SSA)

One of Clear Lake's 27 documented tributaries. Detailed survey history and field photos are available for the priority spawning streams: Kelsey, Adobe, Burns Valley, and Forbes.

Field Photos

Morrison Creek in the field

2 photos documenting survey reaches, barriers, fish observations, and seasonal conditions from Lake County Watershed Protection District community science monitoring.

Morrison Creek at Foothill Road — Upstream · 5/9/25
Monitoring site
Morrison Creek at Foothill RoadUpstream · 5/9/25
Morrison Creek at Foothill Road — Downstream · 4/7/25
Monitoring site
Morrison Creek at Foothill RoadDownstream · 4/7/25