Robert Trent Jones Jr. designed two courses at Heron Lakes Golf Club, an Audubon Cooperative Sanctuary just north of downtown Portland. Both layouts hosted a U.S. Amateur Public Links, with the Greenback course first hosting in 1979, followed by Great Blue in 2000. Compared to the Greenback, Great Blue offers smaller, more undulating greens. There is plenty of tall, Scottish-style fescue and mounds, which add character and penalize wayward shots.