Yes, that would do fine. Anticipate the turn coming up and the bank angle that will be necessary. Pitch up just a short bit for shallow and a bit more for medium or steep. The thing I had to caution CFOT about was hairpin turns. When the change in river direction exceeds 90 degrees a significant pitch up (but less than stall airspeed) is required. Don't start any pitch up without zoom reserve (cruise) airspeed. When pitched up wings level at the proper place, the new river direction is coming near abeam. Lead rudder in the bank and relax all back pressure on the stick. The slower airspeed and the bank angle is what will cause the nose to go down naturally as far as it needs. In steep banks, the nose will go down significantly and the horizon will no longer be visible. This will happen even earlier in a canyon or deep valley. Pay attention to how the crosswind from the river in the new direction reduces the radius of the turn (bank equal to no wind). And how the crosswind that becomes a downwind in the turn increases the radius of the turn (bank equal to no wind.) Don't try to make a steep river turn near terrain with a downwind condition unless that downwind is also an up slope wind that is sufficient ridge lift to get you up and clear of that terrain. Like you say, the ridges are well distant here.
The whole objective of energy management in turns is to avoid the razors edge, not to find it.


























































