Accurate fractal phenomenon, title speak by  itself. 6.5
 
 
 
START PARAMETER FILE=======================================
fractal_river      { ; and inside
  reset=2004 type=formula formulafile=ini__i3.frm
  formulaname=december1 center-mag=-1.57627/0.169896/5.443869/1.0037
  params=-2/0 inside=0 potential=100/200/4
  colors=zzz<25>zaCz`Az_8<2>zX2zW0xV0<24>C60A50840<3>000<25>nnnppprrr<2>xx\
  xzzzzyy<24>zaaz``z__<2>zXXzWWxVV<24>C66A55844<3>000<25>nnnppprrr<2>xxxzz\
  zzxx<24>zCCzAAz88<2>z22z00x00<22>G00E00C00<2>600400000
  }
frm:december1{;sinpix
z=pixel:
c=z*p1/2
q=1/z+c
e=sqr(z)^p1+c
z=(z+e/q+c)+((z+e/q+c)-1)+pixel
|z|<4
}
END PARAMETER FILE========================================