In the spirit of the "fractal forgeries" of Mandelbrot and Voss, the centered tile midpoint displacement algorithm of Mandelbrot is modified to introduce fractal rivers into fractal landscapes. The rivers and river networks co-evolve with the landscape to produce valleys and gulleys. The rivers have fractal dimensions in the range 1.1–1.26, similar to real rivers. The fractal dimension is maximized by weighting the probability of wriggling right vs. wriggling left so the river tries to maintain a straight course downstream, much as with meanders of real rivers. The rivers are generated by randomly placed springs and by local depressions in the landscape filled with "water" to become "lakes". The topological properties of the river networks and the degree to which the landscapes with and without rivers approximate fractional Brownian motion are explored.