Los Angeles Mayor Eric Garcetti and a posse of City Council members will mount up and hit the trail Sunday afternoon in Chatsworth.
The trail ride through the West Valley community's hills is being organized by a local horse-owners' group, Equestrian Trails Inc. Corral 54.
Members of that organization have been alarmed that encroaching residential development was threatening to squeeze horsemen out of the area.
Organizers said the 90-minute ride through an area made famous by 1950s-era cowboy movies and TV shows will begin about 1:30 p.m. at Stoney Point Ranch, 10661 Andora Ave. Riders were asked to saddle up starting at 1 p.m.
Among those who popularized the area for filming was cowboy star Roy Rogers, who owned a ranch near what is now Chatsworth Park.
The ride was being set up through City Councilman Mitch Englander's office. He represents the northwest San Fernando Valley area.
The outing will be open to the public, said Corral 54 leaders. Those who do not have horses of their own can rent mounts from Rocken P. Outfitters.