11.   Lawmen rarely ventured into the narrow Osage River valley.

12.   The narrow valley gorge was being filled in, first with ash, then magma, then mud from glaciers that had been blow-torched.

13.   The narrow valleys make ideal places to ambush troops.

14.   The vast numbers of tourists have long put increasing pressure on this narrow little valley carved into the middle of the Sierra Nevada.

15.   There, in a narrow valley with a stream running through the middle, are thousands of Japanese Macaque, a small, brown monkey.

16.   There, just beyond the narrow green valley and midway up the opposing hillside, a bunker-full of Indian troops stared back.

17.   There, just beyond the narrow green valley and midway up the opposing hillside, a bunker full of Indian troops stared back.

18.   Trucks are now barred from crossing Switzerland at night to reduce noise and pollution in the narrow Alpine valley that leads into the tunnel.

19.   Two soldiers flushed out a man and chased him down the hillside and into the narrow valley.

20.   We spent the next hour or two snaking through a narrow valley, following and occasionally fording a stream.