定義： An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
定義： An elongated whale-shaped hill formed by glacial action. Its long axis is parallel with the movement of the ice, with the blunter end facing into the glacial movement. Drumlins are sometimes compared to kames, but their formation is distinctively different.
定義： An elongated whale-shaped hill formed by glacial action. Its long axis is parallel with the movement of the ice, with the blunter end facing into the glacial movement. Drumlins are sometimes compared to kames, but their formation is distinctively different.
定義： An elongated whale-shaped hill formed by glacial action. Its long axis is parallel with the movement of the ice, with the blunter end facing into the glacial movement. Drumlins are sometimes compared to kames, but their formation is distinctively different.
定義： An elongated whale-shaped hill formed by glacial action. Its long axis is parallel with the movement of the ice, with the blunter end facing into the glacial movement. Drumlins are sometimes compared to kames, but their formation is distinctively different.
定義： An elongated whale-shaped hill formed by glacial action. Its long axis is parallel with the movement of the ice, with the blunter end facing into the glacial movement. Drumlins are sometimes compared to kames, but their formation is distinctively different.
定義： An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
定義： An elongated whale-shaped hill formed by glacial action. Its long axis is parallel with the movement of the ice, with the blunter end facing into the glacial movement. Drumlins are sometimes compared to kames, but their formation is distinctively different.
定義： An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
定義： An elongated whale-shaped hill formed by glacial action. Its long axis is parallel with the movement of the ice, with the blunter end facing into the glacial movement. Drumlins are sometimes compared to kames, but their formation is distinctively different.
定義： An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
定義： An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
定義： An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
定義： An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
定義： An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
定義： An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
定義： An irregularly shaped hill or mound composed of sorted or stratified sand and gravel that is deposited in contact with the glacial ice. It can have an irregular shape
