["SCIENCE \/ Earth Sciences \/ Geology","TRAVEL \/ United States \/ West \/ Mountain (AZ, CO, ID, MT, NM, NV, UT, WY)","Science \/ Earth Sciences","Earth Sciences","General Adult","Geology","Geology;Idaho;Guidebooks.","Idaho;Guidebooks.","Local Emphasis","Math","Mountain (AZ, CO, ID, MT, NM, NV, UT, WY)","Non-Fiction","REGIONAL GEOLOGY","SCI","SCI\/TECH","SCIENCE","SCIENCE \/ Earth Sciences \/ Geology","Science \/ Earth Sciences","Science\/Math","TECH","TRAVEL","TRAVEL \/ United States \/ West \/ Mountain (AZ, CO, ID, MT, NM, NV, UT, WY)","United States","West","geology, rocks, idaho, rocky mountains, faults, volcanoes, craters"]