Click to enlarge photo%3A While the viewsheds on the east side of the Tetons are protected by the presence of Grand Teton National Park%2C the west side of the iconic mountains is experiencing a huge spillover effect from Jackson Hole. Teton Valley%2C Idaho also is facing growth pressures emanating from Idaho Falls and Rexburg. Composite photo of Teton Valley%2C Idaho facing the Tetons created by MoJo staff