31.   For instance, he could not simulate the energy used keeping balanced while scrambling over rocky terrain, Knight said.

32.   Goudarzy said helicopters are being brought to the area because the rocky terrain makes it difficult to reach the crash site by land.

33.   Goudarzi said helicopters are being brought to the area because the rocky terrain makes it difficult to reach the crash site by land.

34.   He said helicopters are being brought to the area because the rocky terrain makes it difficult to reach the crash site by land.

35.   Jaryd disappeared Saturday afternoon in terrain so rocky the search dogs have to wear pads to protect their feet.

36.   Mayer said his feet were badly injured because of having to walk in harsh rocky terrain.

37.   Rescuers reached the site Thursday, braving rocky terrain and the threat of leftist guerrillas.

38.   Stubborn mules, weary from grueling climbs through rocky terrain with hundreds of pounds of equipment on their back, frequently rebelled.

39.   The jagged rocky terrain, as well as heavy rain and snow on Tuesday and Wednesday, have also slowed the operation.

40.   They warn that some areas may never be fully cleared of explosives because of rocky terrain covered by dense, moist vegetation.