leeward bedding/wind tunnel along river

[mihunt44]

how big of a hill would you need to expect to see the leeward bedding/1/3 elevation cruising tendencies?
for example im looking at a river bottom. from the ag fields it drops about 50' over the course of 40 yards or so down to the river.
would you expect to see them cruising/bedding in the 1/3 elevation from the top area or is it not enough of an elevation change to warrant that behavior?
would the river being there cause any notable difference in the thermal affect that should be taken in to consideration?

thank you

[Evanszach7]

I’m not the expert but have some experience with cruising hill country bucks. 50’ seems more like a rolling hill, similar to what I hunt in southern Ohio. The surrounding terrain, draws, and thickness of the cover tends to dictate cruising paths more here than a thermal tunnel. We do get thermals, but in rolling hill country I just haven’t seen them cruise that way like I’ve seen in eastern KY and TN- those both have thermals tunnels but are mountains. Not sure what the minimum elevation change would need to be.