Here we see the reporter pointing at the stake marking the Ingram find, and to the left and above the Ingram find a location where the reporter says some fragments were found. This places fragments of money "above" the elevation of the Ingram find. Note this for future reference.
Georger, back about 2010 or so you and I spent about a year looking at every picture, map, etc., of Tina Bar that could be located.
Remember that the normal Columbia River water level at Tina Bar was about 5 to 7 feet above sea level (using the 1971 vertical datum). This includes the daily tidal variation of about 1.7 feet. Also remember that we don't know what the water level was on the evening of the hijacking.
The Columbia River water level is available for the period when the money was found. On February 12, 1980, the water level at the Vancouver gage, using the 1980 vertical datum, was 2.6 feet for the low, 5.3 feet for the high, resulting in a mean water level of 3.95 feet.
Based on photographs of agents digging at the Ingram find location, it appears that location was at least 5 feet vertically above the water surface. However, we don't know the water level at the time the pictures were taken.
So using the above mean value, the money was at least 8.95 feet above sea level using the 1980 datum. But Tina Bar is about 10 river miles downstream from the Vancouver gage so we need to lower the above estimates by about 6 inches. This would result in a mean value of about 8.45 feet above sea level using the 1980 vertical datum.
In 2010, I kept coming up with a value of about 10-12 feet above sea level using the 1971 datum that applied to the maps we were using.
The fact that fragments were found higher than the Ingram find probably indicates that they arrived first, especially if they are relatively deep down. In my judgment, the fact that the Ingrams found three bundles only inches apart means that they came directly from the money bag and downstream with it.
But you can say with absolute certainty that the fragments started at a distance above sea level that was at least as high as they were found. And the money bag itself, possibly with Cooper still attached to it, had to start at quite a bit higher elevation than the Ingram find since it had long since lost it flotation capability.