Ellis Pond, also known as Silver Lake and Roxbury Pond, is a 919 acres (372 ha) glacial lake in Roxbury, Maine and partially in Byron, Maine, United States.

It also contains three small islets, the biggest of which is informally referred to as Loony Island, due to loons nesting there.

It is fed by the Garland Brook and various smaller, unnamed streams, brooks, and rivers, and is drained by Ellis River.

In 1940, the pond was estimated to be 920 acres (370 ha) in size,[1] and in 1869, it was estimated to be 1.25 square miles (800 acres) in size.

This Maine state location article is a stub.