Where can I find a website that has the following information on a US national park formed by erosion?

Here is the information that I need:
· History of the park, which includes:
- who discovered or first documented the park
- when it was declared a national park
- current usage of the park
· Geology, which includes:
- a complete discussion of the geology of the entire park
- the erosional agents that produced the features of the park
· Pictures, which are to show
- a wealth of pictorial and/or graphical information about the park
- an overall summary and splendor of the park
- timelines of the park
- geologic cross-sections
- photographs of several park features
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I know this sounds like a lot of information to “digest” in one sitting, but any informative answer is appreciated. This project is due November 6, 2008. Thank you for your visit and support!

If the Grand Canyon has a park your in there like swimwear.