A steam-powered foghorn was established at Cape d'Or in 1875. A square wooden lighthouse was added in 1922, re-using a lighthouse tower originally located at Apple River. Two new bungalows were built for the lightkeeper and the assistant lightkeeper in 1958 and a new concrete lighthouse was built in 1965. The last keeper was Ernie Morris who served until the light was de-staffed in 1989. The Advocate District Development Association obtained a lease through the County of Cumberland to preserve the site and its structures in 1995. The lightkeeper's houses were repaired. Today, one serves as the Lightkeeper's Kitchen restaurant and the other as a Guesthouse.