glacier- a great mass of ice that moves very slowly down a mountain or along a valley, or spreads very slowly over a land area
impressive- able to impress the mind, feelings, conscience
naturalist- a person who studies living things
preserve- to keep from harm or change; protect
slopes- lands that go up or down at an angle
species- a set of related things that share certain characteristics and that can interbreed
wilderness- a wild region with few or no people living in it
impressive- able to impress the mind, feelings, conscience
naturalist- a person who studies living things
preserve- to keep from harm or change; protect
slopes- lands that go up or down at an angle
species- a set of related things that share certain characteristics and that can interbreed
wilderness- a wild region with few or no people living in it