There are many features of mud volcanoes. One of these features is the gryphon, which is a steep, short cone that gives off mud. Another feature is the mud cone, which is a tall cone that makes mud and small pieces of rock. The scoria cone is a cone that is made when of mud are heated up and the salse, which are pools of water that leak gases out of them. Mud volcanoes have many other features, but most of these are notable.