1. Here, the valley walls pull away from each other and become steeper. 2. Modern coal mining operations are highly visible along the upper valley walls . 3. It is located on a terrace on the northern Vorderrhein valley wall . 4. Someone whispered, pointing to a house high on the valley wall . 5. Valley trains are long, narrow accumulation of glacial outwash, confined by valley walls . 6. The valley walls bear insignias of regiments that have served here. 7. The valley walls have surficial geology consisting of bedrock made of sandstone and shale. 8. It is rumored that a series of lay lines cross the beautiful valley wall . 9. The "'Cedar Valley Formation "'is a valley walls over much of north-east and north-central Iowa. 10. A little further to the west is Jochberg ( ), which completes the valley wall .
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