I remember the letter from the conservation group American Rivers.

To begin the game, you must choose from among five well-known North American rivers.

Due to the success of hatcheries on American rivers, the idea did not gain any momentum at the time.

To be sure, the greatest of American rivers has not flowed out of the woods just yet.

But the Hudson bows to no American river in the richness of its history.

Sometimes their population in American rivers reaches plague proportions.

I knew you were named after some American river, I didn't know which.

In 1970, some American rivers were so polluted with chemicals that they were fire hazards.

If you like flowing water, American Rivers (www.americanrivers.org) will get you going.

It is found principally in the mouths of tropical American and African rivers.