You are in Glacier Bay. Starting at a location dominated by alders, you would most likely first run into the _ stage if you travelled toward the glacier's edge and the _ stage if you travelled away from the glacier's edge.

Question

You are in Glacier Bay. Starting at a location dominated by alders, you would most likely first run into the _______ stage if you travelled toward the glacier's edge and the _______ stage if you travelled away from the glacier's edge.