This might sound crazy...
Would it be possible to create a spring creek by drilling a "Flowing Artesian Well" (since that is essentially what a spring is)? Assuming that it is possible, and you have the funds/resources to actually do it, it seems that you could create your own private trout stream. You could even design the shape, width, depth, structure, etc. and control the flow rate. How awesome would that be? Of course, it would be a small stream, but it would still be awesome, and encredibly expensive I assume.
Does anyone know anything about drilling water wells, or whether or not this would be possible?
I told you it would sound crazy, but I just couldn't help but ask...lol.