A few decades ago there was a small lake or taal (pond). When it dried up, people started calling it kaana taal. By that the name of nearby area is Kanatal. Indians usually use the word kaana for dry well or pond in Hindi language.
Surkanda Devi is a temple in Kaddukhal, dedicated to Sati. Surkanda is where the head of Sati had fallen after Shiva carried her on his trishool from Kankhal, Haridwar after she set herself on fire. You get a 360-degree view from the top of the temple. This temple is 8 km on the road to Mussoorie to Kaddukhal.