The big mystery of the Sawtooth Mountains of Idaho and their impressive glacial features

Here's a riddle. Two mountain ranges in Idaho lie within 60 miles of each other. The highest peaks in Mountain Range A are about 9,000 to 10,000 feet above sea level. Mountain Range B has many peaks over 11,000 feet and several that exceed 12,000 feet above sea level. Both mountain ranges hosted glaciers during the Pleistocene Ice Age. Mountain Range A shows abundant evidence of extensive glacial erosion; the glaciers were big here and existed on both the east and west sides of the range. Mountain Range B was far less glaciated, with smaller glaciers mainly confined to the eastern side of the range. Why would a smaller mountain range have much larger glaciers than a taller range? Team up with geology professor Shawn Willsey as he explores that question atop a scenic hill overlooking the Stanley basin near the iconic Sawtooth mountains in central Idaho. Approximate GPS location: 44.15657, -114.87128 I love doing these videos and will continue to do so but if you want to provide support or much appreciated gas money, you can send support via: Venmo @Shawn-Willsey (be sure to put two L's in last name) or PayPal: https://www.paypal.com/donate/?hosted... or a good ol' fashioned check to this address: Shawn Willsey College of Southern Idaho 315 Falls Avenue Twin Falls, ID 83303