Mary Smith Campground is a scenic and peaceful campground located on the shores of Lewiston Lake near Lewiston, California. It is managed by the U.S. Forest Service and is a popular spot for visitors seeking a tranquil outdoor experience. Situated within the Shasta-Trinity National Forest, the campground provides stunning views of Lewiston Lake and surrounding wooded areas.

Lewiston, California, is a small, unincorporated community in Trinity County. It's located in a picturesque area near the Trinity River and is known for its proximity to outdoor recreational opportunities. Its population is 1,222 as of the 2020 census, up from 1,193 from the 2010 census.