Question
There is a mound that is about 9 ft. long in the middle of my yard.  It gradually rises about 6 inches on one side, levels off to about 4 ft. and then gradually goes down about 1 ft. on the other side.  I can't removed it because a water pipe is under it and I don't think a flower bed would look good in that area of my yard.  I know when there is a dip in a yard, a little bridge looks nice, but what can I do about a mound?  Do you have any suggestions?

Answer
(Sorry for taking so long to reply - I'm in a job transfer at the moment.)

To your question:  How about a rock garden?  Different size rocks & boulders intermixed with perrenials, perhaps. And in the lower portion, a dry creekbed with smaller pebbles. I would't plant a tree (which might be o.k., if the water pipe wasn't there!)  I like the bridge idea.

Just a thought off the top of my head, without actually seeing what you've got.

~M