There are large glaciolacustrine deposits in the Okanagan. They are 50-75 m in height. You can see in the last two photos how big they are. There is a road that runs along the lake and the last pic has a white dot on it that’s a semi.

My theory is that these are beach sediments, as they texture out to silt loam, which is typical for post-glacial lakes in the area. If it were lake sediment itself, it would be much finer in texture (CL, SiCL, C, HC).

Above 75 m is bedrock and soils on residual