SH 17 starts north from NH 49 (Aluva - Munnar Highway) at Munnar, running about 2 km alongside the Kannimala River, then to Rajamudi village - Anakkalpetty road and 0n to Eravikulam village. It passes near Eravikulam National Park and Anamudi, The tallest Indian peak south of the Himilayas and into Marayoor town, (km 42). It then passes through the center of Chinnar Wildlife Sanctuary, past Chinnar Watchtower and continues to Chinnar Check post, (km 59). It crosses the state boundary on a highway bridge over the Chinnar River at .