rhychydwr1 Active member Oct 14, 2024 #1 https://members.caves.org/news/684313/Member-Bill-Halliday-Obituary.htm Also wrote various caving books some where reprinted in Russian.
https://members.caves.org/news/684313/Member-Bill-Halliday-Obituary.htm Also wrote various caving books some where reprinted in Russian.
