One of Hollywood’s historic movie studios supposedly created a map in the first years of the American film industry showing locations in California that could be stand-ins for areas around the world.

The map says it is a “Paramount Studio Location Map,” and multiple blogs and websites say it is from 1927, but Paramount Pictures Corporation, as the studio is known today, has not confirmed this as of publishing time.

The black-and-white map doesn’t show what movies were filmed in the state, but it shows most of the Golden State and Nevada and suggests what global location the different areas could represent in movies.

While some of the comparisons could potentially match, others are more…interesting. Most of the map consists of locations that could stand in for European, African and Asian locations, as well as other areas of the United States.

Here’s a north-to-south rundown of the map of California and the world regions they supposedly resemble.

• State of Nevada — Sudan Desert
• North of Lake Tahoe — Siberia and the French Alps
• Lake Tahoe — Switzerland
• Sacramento River — Mississippi River
• Central Sierra Nevada — New England
• South Bay — Alaskan Rivers
• Santa Cruz — New England Coast
• Eastern Sierra Nevada — Wyoming Cattle Ranches
• Monterey — Nile River
• Central Coast — Africa
• Fresno — Swiss Alps
• Santa Barbara — Coast of Spain
• Southern Sierra/Mojave Desert — Kentucky Mountains
• Los Angeles/Long Beach/Orange County — Wales/Venice/Holland
• Joshua Tree area — Sherwood Forest, England
• Catalina Island — South Sea Islands (Polynesia)
• Indio — South Africa
• Salton Sea — Red Sea
• Southern Coast — Malay Coast
• San Diego — Spain
• Southeastern California — Sahara Desert

While it remains unclear if some of these locations were actually used by Paramount, San Diego does have a long history of being used as a backdrop for Hollywood productions.

Hundreds of films and TV shows have used San Diego sites as filming locations, both to represent America’s Finest City and other settings.

Particularly in the early days of Hollywood, a number of these films used Balboa Park, which is now known for its ornate Spanish-style architecture, as a stand-in for a range of places around the world.

Most notably, Balboa Park was used to portray the Florida mansion of the titular character in “Citizen Kane,” a fictitious South American country in the 1916 film “The Americano,” and a castle in India for the 1939 film “The Rains Came.”

Outside Balboa Park, other San Diego sites like the Hotel del Coronado and the harbor have also been used numerous times as a location in films like “Some Like It Hot,” “Bruce Almighty,” and of course, “Top Gun” and “Anchorman: The Legend of Ron Burgundy.”