Answer: antarcticcircle

AnswerCrossword Clue
ANTARCTICCIRCLE

66 degrees 30 mins. S

ANTARCTICCIRCLE

South Frigid Zone boundary

ANTARCTICCIRCLE

Near the South Pole

ANTARCTICCIRCLE
Latitude between the South Frigid Zone and South Temperate Zone
ANTARCTICCIRCLE
Global boundary line
ANTARCTICCIRCLELine flown over by Admiral Byrd
ANTARCTICCIRCLEEmperor penguin's realm
ANTARCTICCIRCLEWhere the geometrician visited?
ANTARCTICCIRCLESouth Pole area
ANTARCTICCIRCLEIt passes through the Weddell Sea
ANTARCTICCIRCLESouth Temperate Zone border
ANTARCTICCIRCLEAbout 23 degrees North Latitude
ANTARCTICCIRCLEAbout 66 degrees south latitude
ANTARCTICCIRCLESouthern Hemisphere imaginary line
ANTARCTICCIRCLEFrigid Zone boundary
ANTARCTICCIRCLELine that encloses a continent
ANTARCTICCIRCLERing around a cold area
ANTARCTICCIRCLEGeographers' hypothetical line
ANTARCTICCIRCLEImaginary boundary for the South Frigid Zone
ANTARCTICCIRCLEImaginary line N of South Pole
ANTARCTICCIRCLESouth Frigid Zone and South Temperate zone separator
ANTARCTICCIRCLEEarth's southernmost latitude
ANTARCTICCIRCLELine of latitude north of the South Pole
ANTARCTICCIRCLEIt's between the South Frigid Zone and South Temperate Zone