An area covered by sand and gravel deposited at the front of a glacial moraine.
An area covered by sand and gravel deposited at the front of a glacial moraine.
冰川前砂砾层冰河冰渍前沉积的沙及砾石覆盖的区域
An area covered by sand and gravel deposited at the front of a glacial moraine.
冰川前砂砾层冰河冰渍前沉积的沙及砾石覆盖的区域