Boggs Lake Ecological Reserve, Protected natural area in Lake County, California, United States

Boggs Lake Ecological Reserve is a protected area of about a quarter square mile in Lake County, California. Its centre is a vernal pool of roughly 90 acres when full, lying in a volcanic depression lined with a few feet of compacted volcanic ash that water cannot pass. A protective fence and interpretive signs stand at the site, which has a small parking area and a hiking trail loop.

The reserve was established in 1973 and takes its name from Henry C. Boggs, who operated a mill near the lake in 1866. The volcanic geology and seasonal water cycle have shaped this landscape for thousands of years.

The lake is named after Henry C. Boggs, who bought a combined grist and sawmill at its edge in autumn 1866. The Boggs Lake Preserve Committee, formed after the 1973 donation, spent about ten years mapping and monitoring the rare plants, and its findings led to the 1984 expansion of the boundaries.

The reserve is accessed from Highway 175 near Kelseyville via Bottle Rock Road, continuing south to Harrington Flat Road. Visitors should plan around seasonal water levels, as the lake's condition changes dramatically throughout the year.

The reserve hosts a rare ecosystem with endangered plant species and a western pond turtle population that receives ongoing scientific attention. Conservation groups conduct regular studies to monitor this fragile habitat.