Horse & Pony Books:
THE LAST MUSTER
(SHOLASTIC PB [AUSTRALIA] 2004)
SUMMARY: Shane and Red are teenagers living on a station in the Kimberley region of Western Australia. They are happiest when they are working outside and exploring the environment rather than studying. Shane is the son of the station manager, and Red is an Aboriginal girl whose grandfather worked as head stockman for many years. Red and Shane discover new country when they pursue a herd of wild horses led by a rogue stallion, which Shane is determined to capture and have as his own horse. In the process of trying to catch the horse Shane and Red become more aware of each other, learn about Aboriginal legends and the importance of country, family and heritage.
Reasonably hard to find outside of Australia.