Mount Saint Catherine is an extensively weathered stratovolcano mountain and tallest peak on the Caribbean island of Grenada.

[1] The volcano has a ~1.5-km horseshoe-shaped crater open to the east, where a complex of volcanic lava domes occur across its flanks and is monitored by the Seismic Research Center of the University of the West Indies.

[2] It is considered to be the only live volcano among the five volcanic centers in Grenada on account of its relatively well preserved morphology and the presence of hot springs and fumaroles on its flanks.

[3] Although violent eruptions occurred in the geological past (i.e. Pleistocene—2,588,000 to 11,700 years ago), revealed by voluminous pyroclastic-flow deposits extending northwest of the summit, this type of volcanic activity is now considered unlikely to occur in the near future.

[4] The mountain summit is accessible by three steep rugged routes crossing the forest reserve, from Mt.