The speed limit is posted at 35MPH this is a St Clair CO Highway that comes off of Pine Mountain the road is a very steep mountain road the only way you can stay at 35MPH is to keep your brakes on all the way down the mountain keeping this speed limet is very hard to do and if you are driveing a big truck it is even harder,45 mph would be a better limit but if you are caught doing 45 by the Springville police you better have some money in your pocket, you see they have the same judge as Riverside Al