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I wasn't aware of any fault lines in Colorado. What fault lines run through Colorado? Did It cause any rock slides due to all the mountains?
The Sangre de Cristo fault is the longest fault in Colorado that has compelling evidence of late Quaternary movement. The fault marks the western side of the Sangre de Cristo Range and the eastern margin of the San Luis Valley and extends about 300 km from Poncha Pass at the northern end of the San Luis Valley in Colorado to near Taos, New Mexico on the south.