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
Tue
5AM - 9AM
12 May 2026
Light and variable.
Increasing from −3 to 23°C
Mostly fine
Tue
9AM - 1PM
12 May 2026
- SE 2 knots increasing to 7 knots.
- Increasing from 22 to 28°C
UV Index: 8 - Very High- Cloudy
Tue
1PM - 5PM
12 May 2026
- SE 6–10 knots veering SW 6-10 knots. Gusts up to 18 knots.
- 26 to 29°C
- UV Index: 8 - Very High
- Cloudy