For the first time in hundreds, if not thousands of years, children of the Coeur d'Alene Tribe no longer know the excitement of fishing a heavy spring spawning run of westslope cutthroat trout.Even into the early 1980s, thousands of fat cutthroats swam up the lake's many feeder creeks each year to spawn. But real estate development, the Post Falls dam and even a massive fuel spill have all taken a toll on the native fish. Tribal members are terrified the species that once sustained them could be on the brink of vanishing. "These streams had tens of thousands. Now we're excited when we see 300," said Robert Matt, the tribe's lake manager, who still has vivid memories of fishing the creeks that flow into the southern end of the lake. "Those trout were fabulous – a fly fisherman's dream."