1.   During dry periods the water evaporates, and the gypsum sinks to the lake bottom.

2.   As a result, they say, the lake bottom is being starved of oxygen.

3.   By lowering a polyethylene pipe into Lake Nyos, the team has allowed gas-rich water at the lake bottom to froth up in a great fountain.

4.   Dunk your plastic bait to the lake bottom and just let it sit there, occasionally giving it a twitch.

5.   During dry spells the lake bottom was farmed.

6.   For amateurs, the easiest fossils to find are at exposed edges of the old lake bottom, where the weathered limestone splits easily.

7.   If it is to be a bad season, there is virtue in playing it on a lake bottom.

8.   In a recent demonstration on Leech Lake here in northwestern Minnesota, the camera showed details of the lake bottom.

9.   Land-sailing on a baked Nevada lake bottom?

10.   My rod was out of the boat and heading toward the lake bottom.