The nomads who made these markings lived by hunting and fishing during the last Ice Age which began about 35,000 B.C. and ended about 10,000 B.C.
做出这些刻记的游牧人，依靠狩猎和捕鱼生活在冰河时代的晚期。这段时期大约始于公元前35000年而结 束于公元前10000年。