Artist who created TV 'Bonanza' map dies at 98
Artist Robert Temple Ayres died Feb. 25 at his Riverside County home at the age of 98, but not before making one last pilgrimage to the Ponderosa two days before his heart finally gave out.
In his career as an artist for MGM, Paramount and the Walt Disney Co., Ayres created his most famous work, officially called “Map to Illustrate the Ponderosa in Nevada.” It was created in 1959 so it could burn up weekly on television screens for the ensuing 13-plus years.
While the immortal “Bonanza” theme music played at the start of each episode, Ayres’ map appeared, then dissolved in flames, revealing the Ponderosa ranch’s inhabitants on horseback –- the Cartwright clan played by Lorne Greene, Michael Landon, Dan Blocker and Pernell Roberts.
The map had hung for decades in the home of “Bonanza” creator and producer David Dortort before his family donated it to the Autry National Center of the American West after his death in 2010. When the Autry Center announced last June that the Ponderosa map had gone on permanent display, The Times contacted Ayres to get his thoughts on his TV icon that was now a museum piece.








