About Trinity Alps Marina
Trinity Alps Marina is happy to provide moorage at our accommodating boat docks when you’re in or near Lewiston, Weaverville, Trinity County, or Douglas City, CA. We have a number of slips available, with per-day, -season and –year moorage options available.
Facilities
Petrol
Food
Boatbuilder
SupermarketCOORDINATES
40.81708 N, -122.76713 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m
Depth at MLW
2 - 3m
Manoeuvrability
Good
Channel Marking
Fair
Port of Entry
No
Overseas Visitor Berths
Yes
Dock Type
Floating
Style Side To
Yes
Style Stern To
Yes
Tidal Flow
Negligible
Active Winter
No
Weather Forecast
Thu
5AM - 9AM
21 May 2026
Light and variable.
Increasing from 8 to 20°C
Partly cloudy
Thu
9AM - 1PM
21 May 2026
- Light and variable.
- Increasing from 22 to 30°C
UV Index: 9 - Very High- Mostly fine
Thu
1PM - 5PM
21 May 2026
- SE 2–7 knots veering W 2-7 knots.
- 29 to 33°C
- UV Index: 9 - Very High
- Mostly fine