Good Morning Hot D

[HairOfTheDog]

It was there before the lake was filled.

Aha. You are quicker than I. Your answer isn't the one provided, but it works just as well as the riddle doesn't state that the lake is not man-made. The answer provided is "the tractor was driven over in the winter when the lake was frozen". Stupid riddle.

Here's a cheezy one:
A time when they're green, a time when they're brown, But both of these times, cause me to frown. But just in between, for a very short while, They're perfect and yellow, and cause me to smile! What am I talking about here?