Uniformitarian explanations of slow and gradual deposition/erosion over millions of years fail to offer a reasonable explanation for such important geologic features and formations as the Tibetan Plateau (thousands of feet thick and over three miles above sea level), the incredible lava Columbia Plateau in northwestern United States ( approximately 200,000 square miles) and the flat, featureless Colorado Plateau .
Featureless? Have you never seen the plateau? There's plenty of features, you moron and evidence towards the slow/gradual erosion and deposition you're using it as evidence against!
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Those lines you see are the deposits that correspond to each era. You don't even have to go to the plateau to see this because we have the Rockies and other geographic features all over the state of Colorado! It's smooth because we still have wind and water in Colorado which wears away at the features over the eons.
Learn something about geology before you talk!