Facility · California ·
Managed by the USDA Forest Service
The Trinity Unit, comprised of Trinity and Lewiston Lakes, is one of three units that comprise the Whiskeytown-Shasta-Trinity National Recreation Area. It was established by Congress in 1965. These areas are recognized for their unique and varied recreation potential. The Trinity Unit and the Trinity Lake Boating Safety maps are available in our offices at no charge. For information on obtaining the Shasta-Trinity National Forest map as well as many other National Forest maps, please browse to the Maps & Brochures page. Trinity and Lewiston Lakes form the core of the Trinity Unit where water oriented sports such as fishing, water-skiing and houseboating dominate the recreation spotlight. For the adventurous, however, there are many other activities, such as; wildlife viewing, hiking, hunting, automobile touring, photography, and picnicking.
40.98128, -122.76897 · 40°58'52.6"N 122°46'8.3"W
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | — | — | — | — | — | — | — | — | — | — | — | — |
| Low °F | — | — | — | — | — | — | — | — | — | — | — | — |
| Precip in | 9.2 | 8.0 | 5.7 | 3.8 | 2.3 | 1.2 | 0.2 | 0.2 | 0.5 | 2.7 | 5.3 | 11.0 |
1991–2020 averages from the nearest NOAA station, 3.8 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.
Recreation.gov last updated this record on 2026-02-25.
Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.
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