Where Was The Ponderosa Supposed To Be On ‘Bonanza’? The Map In The Opening Credits Had The Answer

Every Saturday night starting September 12, 1959, and later on Sundays, Bonanza opened the same way. A hand-painted map filled the screen, the theme galloped in, and a ring of fire ate through the paper until Ben Cartwright and his three sons came riding out of the flames. Most of us were too busy humming along to study that map, which is a shame, because it answered the question plainly. The Ponderosa sat on the eastern shore of Lake Tahoe, on the Nevada side, with the silver boomtown of Virginia City and the territorial capital of Carson City close by.

So the short answer is that the Cartwrights lived in a real place, even if their ranch never existed. The size of the spread is a murkier story, and so is the question of how much of the show was ever filmed anywhere near Tahoe.

So Where Was The Ponderosa, Exactly?

The setting was chosen with real history in mind. The show’s title pointed to the Comstock Lode, the enormous silver strike made under Virginia City in 1859, and that boom town became the place where the Cartwrights went for supplies, saloon trouble and long talks with Sheriff Roy Coffee. The ranch itself stretched from the hills down to the lake, a timber and cattle empire in the high pines of the Sierra Nevada.

Even the name came from the landscape, though two people have claimed credit for it. Creator David Dortort said it came from the ponderosa pines that grow above 5,000 feet in that country. Joan Markowitz, who worked for Dortort while the pilot was being developed, told the Northern Nevada Business Weekly in 2004 that she settled an early-morning argument over the name. Dortort had been calling the ranch “Panamint,” she said, and she suggested naming it after the trees instead.

Whoever named it, the man who drew it made one small change to Nevada that most viewers never noticed.

Who Painted The Burning Map, And Is It Accurate?

The map was the work of Robert Temple Ayres, a Hollywood set illustrator and a cousin of Shirley Temple. According to his 2012 obituary in the Northern Nevada Business Weekly, the show’s creators hired him in 1959 and he spent several weeks on the painting, which showed the Ponderosa, the eastern shore of Lake Tahoe, Virginia City and Carson City. Its official title was “Map to Illustrate the Ponderosa in Nevada.”

Ayres built it on the real geography of western Nevada, but he turned it. Instead of putting north at the top, the way nearly every map does, he tilted it so east sits at the top. He explained later that he did it “so it would go good on the screen,” as Big Think reported in its Strange Maps feature. The original hung in Dortort’s home for years. After Dortort died in 2010, it went to the Autry Museum of the American West in Los Angeles, and Ayres, by then in his late 90s, made a final trip to see it before he died in February 2012 at 98.

The map showed where the Ponderosa sat, but it never put a number on how much land Ben Cartwright owned.

How Big Was The Ranch Supposed To Be?

This is where the canon gets slippery. The figure most often tied to the show is 1,000 square miles, which works out to about 640,000 acres, close to the entire land area of Rhode Island. It’s the number the series’ own description still uses on the streaming service Tubi (“their 1,000-square mile Ponderosa Ranch”), and episode guides trace it to dialogue in the first-season episode “Mr. Henry Comstock.” The 600,000 acres you’ll see quoted in magazines and on fan sites appears to be a rounded version of the same figure, since no one connected to the show seems to have stated it on the record.

Then Ben himself changed it. In 1964, Lorne Greene recorded a six-minute spoken-word piece called “Saga of the Ponderosa” for his album Welcome to the Ponderosa, and in that telling, the holdings came out to “half a million acres.” That’s about 781 square miles, a fifth smaller than the TV figure. The show never formally settled the difference, so the most honest answer is that the Ponderosa was somewhere between half a million and 640,000 acres, depending on whether you believe the episode or the man who played its owner.

Either way, it was a vast stretch of Nevada, and the cameras saw surprisingly little of the real thing.

Did ‘Bonanza’ Really Film At Lake Tahoe?

Some of it, yes, and the reason was color. NBC’s parent company, RCA, was selling color television sets, and Bonanza was built to show them off. “This was to be the first show shot in color, and I couldn’t think of a more beautiful place than Tahoe,” Dortort told the Northern Nevada Business Weekly in 2004. In his 2002 interview with the Television Academy Foundation, he also credited NBC’s Tom Sarnoff with helping get the series on the air in color.

The famous ride in the opening credits was filmed in a meadow on the east shore near Round Hill and Zephyr Cove, with the lake shining behind the horsemen. Crews from Paramount and NBC shot exteriors and stock footage around the North Shore, and when crowds gathered to watch, a local family began charging 50 cents a head, then 75 cents the following year, according to the Record-Courier.

Most of the Cartwright home, though, lived in Hollywood. The ranch house interiors were shot on a Paramount soundstage, and Virginia City was a Paramount backlot set until 1970, when production moved to a cheaper set at Warner. Many outdoor scenes came from California spots like Big Bear Lake, because hauling a cast and crew to Nevada every week cost too much. The Tahoe trips were short, and the footage was used again and again.

That left Tahoe in an odd position. Tourists were arriving to see a ranch that wasn’t there, and one family decided to give them one.

What Became Of The Real Ponderosa?

Bill and Joyce Anderson ran Incline Stables on several hundred acres in Incline Village, near the spot where the fictional ranch would have stood. Visitors kept asking them where the Ponderosa was, so they approached NBC and Dortort with the idea for a theme park. The Ponderosa Ranch opened in the late 1960s (1968 in most accounts, 1967 in some) with a replica of the Cartwright house and barn, a frontier town, gold panning and, eventually, Hoss burgers. Parts of the last five seasons and three TV movies were filmed there, and millions of fans walked through Ben’s living room over the next 36 years. If you visited, you may remember that the staircase led nowhere, because the bedrooms were always on a Hollywood soundstage.

In 2004, the Andersons’ children decided to sell, and software billionaire David Duffield bought the property that June for an estimated $55 million. Dortort was in his late 80s when he heard the news. “Well, my feeling is one of regret. We had a lot of fantastic years up there,” he told the Northern Nevada Business Weekly. “I just hope developers don’t get their hands on it. That would be tragic.”

The park went out with a crowd. It set attendance records on its last two days, with 2,146 visitors on Saturday and 2,350 on Sunday, September 26, 2004, and it ran out of everything, beer included. The meadow from the opening credits had its own moment in 2020, when the Zephyr Cove estate that includes it sold for $38 million, which the Reno Gazette-Journal called the most expensive lakefront home sale ever on the Nevada side of the lake. All four men who rode across it in those credits are gone now, and you can see which Bonanza cast members are still alive today, along with when Lorne Greene believed the show should have ended.

The best memory of the place belongs to Royce Anderson, one of the family owners, who watched that last Sunday crowd refuse to go home. “It was weird. At the end of the day, people were hanging around,” he told the Record-Courier. “They wanted to be the last ones out the gate.”