A Gander Pull Frederick Remington (1861-1909)

The picture has something of this: people, military, group together, many, soldier, group, war, man, cavalry, skirmish, weapon, army, administration, military uniform, uniform, wear, leader, several, vehicle.
Perhaps it’s a black and white photo of a man on a horse jumping over a pole in front of a group of men on horses on a beach with mountains in the background.