National Geographic : 1935 Oct
WADE, COREY, AND SIPLE WAVE A NEW YEAR'S GREETING TO PILOT SMITH AS HE ROARS OVERHEAD The strip of red cloth is a signal to Miss American Airways, meaning "All well-OK." A code was furnished all land parties forcommunicating with theplanes. ©(Byrd Antarctic iJxpeoation A DOG PARTY REPLENISHES ITS SUPPLIES FROM A DEPOT ON THE SNOWY SLOPES OFMOUNT GRACE MCKINLEY Such caches were left at regular intervals along this route weeks before by a tractor party. They were always marked byflags and beacons ofsnow blocks. Asa group advanced into new territory, they stuck flags or markers in the snow every quarter of a mile to guide them on their return. One aviator, asheflew over such a trail, remarked that it looked "like a picket fence."