This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
... Bright Angel shale Yavapai Point Grand Canyon Arizona. en Bright Angel shale exhibit at Trail of Time near Yavapai Point Grand Canyon Arizona USA own Hermann Luyken cczero Uploaded with Stratigraphy of Grand Canyon Shale
Page 2023 Free-images.com. All images are Public Domain