The Pony’s Load

“[Russell, Majors & Waddell] immediately set to work, making careful plans for speeding and safeguarding the Pony Mail. They believed that both depended on the swiftness and endurance of relay ponies, since a single rider could not fight off Indian attacks and would have to escape them by running away. For this reason, a pony’s load must be no more than 165 pounds. Only riders weighing 120 pounds or less would be hired, equipment must weigh no more than 25 pounds, and each rider’s mail load would be limited to 20 pounds.”