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.
12 water temperature dictates when trout will feed and it should dictate when the angler will fish 13 water has its greatest density at 38 to 39 degrees and trout seldom hit when the water temperature is below 40 degreesfrequently taking the water temperature tells you if it s rising or falling one degreehe immediate effect of water temperature going down in the spring is trout quit feeding after the spring flood when the stream returns to normal flow the angler can find the best fishing for big trout