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>> How long does it take for sandsone to form. From personal experience with wells, about 2 years. >>

Absurd. Whatever gets made around your wells is not sandstone. Probably more like a cement.

Cement is formed when a soluble substance, like, say lime, is mixed with granules and water. The partial dissolution of the lime allows it to fill in between fine spaces of the granules. When the water evaporates, the lime bonds the granules together. Because there is no surface are exposed, the lime cannot redissolve, and a hard, insoluble, stone-like product is left. BUt if you scrub cement against another hard rock, the weak lime gives way easily, and the cement slowly crumbles away.

Sandstone, on the other hand, is caused not quickly by evaporation, but by intense pressure. Although the surcae is still granular, the grains are tightly bonded away, and the rock does not easily crumble.

>>Also, there seems to be a surprising amount of evidence gathered by the USGS that it was formed by a large inland lake bank failure and was created in as little as three months to a year. >>

The land beneath the GC swelled upward WHILE it was being carved. (Unless you believe the water flooded uphill for some reason.) This was certainly a process which took millions of years. Perhaps someone misunderstood something, and then misapplied his understanding: I can see where the initial gorge was created like that, allowing the river to form a canyon, rather than as a meandering riverbed.

The land beneath the GC swelled upward WHILE it was being carved. (Unless you believe the water flooded uphill for some reason.) This was certainly a process which took millions of years. Perhaps someone misunderstood something, and then misapplied his understanding: I can see where the initial gorge was created like that, allowing the river to form a canyon, rather than as a meandering riverbed.

Like I said, thats the official storyline. The USGS has been mapping prehistoric stream bed alluvials. As you are aware when a stream dumps water into a lake it deposits a "delta" kind of thing. These "delta's" are found all around the rocky at approximately the same elevation. When these formations were mapped out they indicated a body of water at least as large, as the great lakes. I don't recall the they were talking about surface area or volume. Anyway, it was a really big lake.

The problem, as I see it, is that many are hung up on "millions of years", because they feel that that is their only argument against creation. Thus any new idea, that doesn't include "millions of years" is considered as a personal attack against their beliefs. Even if the GC took only 3 months to a year to cut, initially. It still would have to be taken in its overall context.