Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? Bottom contour

I have been enjoying a lot of the threads here with pics lately.
I do have a question about bottom contour. I always though for a private fishing pond it was supposed to be better to contour the bottom of the pond with berms like you would do furrows when planting but about 3' tall, yet i have not noticed any lately here?
I have also wondered how these rows would hold up over time.

I also always wanted to build raised submerged islands for vegitation as structure in the lake like you see on golf courses with a retaining wall made out of timbers like railroad ties upright. Anyone ever tinker with anything similar?

Try these. If fishing is the goal then bottom structure is important.

http://www.pondboss.com/forums/ubbthreads.php?ubb=showflat&Number=131390#Post131390

Try this forum for ideas. There are a number of threads on bottom structure ( points , ditches , islands both above and below water , ledges etc).

http://www.pondboss.com/forums/ubbthreads.php?ubb=postlist&Board=4&page=1

But look at this archive first.

http://www.pondboss.com/forums/ubbthreads.php?ubb=showflat&Number=92463#Post92463