question:  Why was mountain climbing prohibited on the Eastern Slope during the time?
context: There was never so much as a landslide to bring the Fault to the attention of the general public. It was still a matter of academic interest when in the late '40s geologists speculated on the relationship between the Kiowa Fault and the Conchas Fault farther south, in New Mexico, and which followed the Pecos as far south as Texas. By the mid sixties it was definitely established that the three Faults were in fact a single line of fissure in the essential rock, stretching almost from the Canadian border well south of the New Mexico-Texas line. It strikes us today as ironic that from the late '50s there was grave concern about the level of the water table throughout the entire area. The even more ironic solution to the problem began in the summer of 1973. Rock slides, they guessed; certainly no fire. Not even in the Rockies could anyone remember a series of rock slides as bad as this. Only Joseph Schwartzberg, head geographer of the Department of the Interior, wondered if the disturbance might not be a settling of the Kiowa Fault. East, where sharp reports and muffled wheezes told of continued buckling and dropping, the earth trembled downward. Atop the new cliffs, which seemed to grow by sudden inches from heaving rubble, dry earth fissured and trembled, sliding acres at a time to fall, smoking, into the bucking, heaving bottom of the depression. Dry earth churned like mud, and rock shards weighing tons bumped and rolled about like pebbles as they shivered and cracked into pebbles themselves. By 16 September the landslip had crept down the Huerfano River past Cedarwood. All mountain climbing was prohibited on the Eastern Slope because of the danger of rock slides from minor quakes. Just below Masters, Colorado, the river leaped 70-foot cliffs to add to the heaving chaos below. And the cliffs were higher every day as the land beneath them groaned downward in mile-square gulps.
output:  They feared the danger of rock slides
options:  The rocks were shifting too fast and the paths could be confusing  The flooding was too substantial  They feared the danger of rock slides  Rescue missions were too dangerous due to the sand storms