ACMG Hamish Sanderson lead the double-peak summits of Horseman Spire and Malachite Spire. It was a long day, with about 14 km of glacier traverse there and back, but worth it to nab both peaks. For the full trip report, visit: https://alisendopf.com/2023/06/11/international-basin-horseman-spire-malachite-spire/
