Rakhi Gopal et al., 2016. Marcoscale Landslide Susceptibility Mapping in parts of Amboori-Ponmudi-Thenmala areas, toposheets nos 58D/13, 58H/1, 58H/2, H/5 and H/6, Kollam and Thriuvananthapuram districts, Kerala. Unpub. GSI Report of FS 2015-16.
Ponmudi Upper Sanatorium
Thennur Village
Construction of a breast wall running throughout the length of the toe cut portion
Heavy monsoonal rain followed by toe cutting