This bay foal is less than one month old and just ran more than 10 miles.
A brief entry on the blog of the Cloud Foundation, which is monitoring the gather, said the roundup "had been stopped" and the Bureau of Land Management was releasing some of the horses.
"The bureau is taking more of Cloud's offspring and has refused to honour our request to release the older horses," the foundation reported.
Among the last to be brought in was the stallion Cloud and his herd from the higher reaches of the mountains.
The life of the palomino stallion has been made famous by documentary maker Ginger Kathrens, who is volunteer executive of the director of the foundation.
The foundation urged its supporters to contact the White House and senators to demand the release of the older horses, and to encourage the return of 150 of the 188 horses to the wilderness. The bureau plan is to release 120 animals.