Get up to 30-35 miles w/38-45#'s. That's basically dawn till dusk in the long months. Not even fast.
I saw a couple walking easy on I-40 last thursday between Ashfork and Prescott, each with a two wheeled travois'. Probable infant in larger one pulled by man. Seemed /fit/ alright!
Wish I had pulled over for a pic for /out/, those two shits weren't posers.
They were truly x-country trekers.