The HTMC gets this key from the state DLNR when conducting trail maintenance. The area on the leeward side of the KST between the 1,860 pu'u and the Laie summit is some of the most remote terrain on Oahu. The headwaters of Kamananui Stream, which eventually empties out into Waimea Bay, begins in this area. The Koolaus in this segment aren't cliffy or narrow. Mud and strawberry guava rule.
Some overgrown parts remain.