It is 2.25 miles (3.62 km) long, extends over an area of 368 acres (149 ha) and is up to 42 feet (13 m) deep.

[2] The most important breeding site in the UK for Slavonian grebes, it has one of the highest populations of this species in Europe.

The RSPB has established a reserve at Loch Ruthven.

Loch Ruthven was designated a Ramsar site on 31 August 1992.

This article about a Site of Special Scientific Interest in Scotland is a stub.