When an uplift pushes a batholith or smaller body of hardened magma toward the surface. And sometimes when magma fails to reach the surface it hardens in to rock. Over time, the forces that wear away Earth's surface such as flowing water, ice, or wind-may strip away the layers above the hardened magma and finally expose it.
Deciding if a trout is a sea trout or a brown trout can be easy if the sea trout is fresh run from the sea âsea trout are distinctively silvery in colour and may still carry sea lice. However, once they have been in fresh water for a while they return to brown trout colours.
Trout fishing is excellent through out the summer due to the cold water temperature. Water temperature varies from 65 degrees with the water off to 50 degrees during releases. The best way to fish the river with the water on is to do a float trip. Fishing it with the water on is a real treat. There are lots of rainbow trout to be caught and also the occasional monster brown trout.