Answer: glacier

AnswerCrossword Clue
GLACIERMontana's ... National Park
glaciergreat mass of ice moving very slowly
glaciera huge mass of ice
GLACIERMount Rainier sight
GLACIERMontana national park
GLACIERMoving mass of ice
GLACIERParagon of slowness
GLACIERIceberg source
GLACIEREpitome of slowness
GLACIERThere's a national park named for one
GLACIERArctic mass
GLACIERNational park in Mont.
GLACIERContinent carver
GLACIERArctic sight
GLACIERNational Park near Hungry Horse, Montana.
GLACIERRear Admiral Byrd's flagship.
GLACIERNational park in Montana.
GLACIERReally slow mover
GLACIERIce Age remnant