Without the fancy tech it takes about a day to gather them all up.

But you have to realize, this is a job we do once a year. Gathering the cows from the winter pasture is easy because it's a lot smaller.

This is why I said the location information could be useful. But, we used horses and anywhere the cows can go a horse can go.

> These are operations that don’t use fences.

Nope, ranchers own (or lease) the land they put their cows out to pasture on. It's all fenced.

> but the American West would have a similar issue where ranchers can run cattle on land leased from BLM.

I'm in the american west. And BLM land that is used for grazing is fenced. In fact, that's part of what you are paying for when you buy a lease from the BLM is to maintain the fence.