Wbranch on Apr 14, 2021April 14th, 2021, 2:47 pm EDT
It's nice to hear from you. Where are you? Since you mention you saw a whitefish I'm assuming you live in the Rocky Mountains. Wyoming, Colorado, Montana am I close? It is possible but highly unlikely that a spring creek entering another clean and larger river would only have one species of fish. Try fishing it, try nymphs and look for any rising fish. If you see some rises maybe they are trout.