Big Truckee and Little Truckee water flows become more "user friendly" there are likely crowds at these venues. If you want to avoid such; explore other regional waters within an hour's drive of the town of Truckee. You'll likely find some solitude at popular spots, venture way upstream or down and think about boats for difficult access.
Have Boat...Will Travel
Even on well-known waters one can find no other anglers...search
Waiting for the hatch...and heads