Looking back towards Moab from the summit of the center Penguin. US 191, the park visitors’ center and the park road are below; La Sal Mountains are in the far background. If you look closely, you can also make out the Colorado River – following it to the right brings you to Potash Road and Wall Street (March 27, 2005).Looking back towards Moab from the summit of the center Penguin. US 191, the park visitors’ center and the park road are below; La Sal Mountains are in the far background. If you look closely, you can also make out the Colorado River – following it to the right brings you to Potash Road and Wall Street (March 27, 2005).