Kosciuszko 'turning point' as hard-hooved horses culled

Soil damage (left) has been reduced and grasslands are now recovering from trampling (right). (HANDOUT/NSW NATIONAL PARKS AND WILDLIFE SERVICE)

A famed alpine national park appears to be on the mend after a brumby cull, but some still question the process taken to control the population.

Surveys across the Kosciuszko National Park estimate the wild horse population has been slashed to between 1579 and 5639 in little more than a year.