Then I saw a fire over here, and just managed to make the riffle.
"I'll back my boys to make the riffle," confidently asserted Roque.
At the bottom of each ledge is a riffle to arrest the particles of gold.
In the third riffle, seven cards have to be held up, and in the fourth, ten.
Riffle—A groove or strip to catch gold and mercury in a sluice.
I'll go in just below ...