There is a elephant walking on a hill with a sky background

I'm as big as rat ash，Huge as a house，The nose resembles a long snake， Sink across the steppe，Footsteps shake the earth，Trees destroy along the way， Grows in the south，There are long horns in the mouth，The big ear fan shakes。 The footsteps don't stop，Never lay on the ground，Even never die。 I am a mammoth，The largest body，Tall and old。 If you see me，Never forget。 If only by rumors，Don't believe me it's true。 I am an old mammoth，Never lie。