Here is a Autumn, Fall Foliage - Colorful Background Texture Photo

Textures; Autumn Leaves Background - Pictures, Photos, Photographs
Bright yellow, orange and green autumn foliage create a beautiful textural background image.

I found 93 images for the term "Chestnut" at Acclaim Images.com.
They offer a variety of royalty-free, high resolution formats to choose from, and you can even order prints and posters through them!

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