Found in the “front” section of the neighborhood I live that had a boom of new house construction. I have a few that look similar but found in different places. Some are just on the side of the country road that leads to the back side (where I live) of the neighborhood. This is in Georgetown, TX. Rock Unit Name: Keys Valley Marl Rock Unit Code: Kkv Sheet name: Austin Period: Cretaceous Epoch or Series: Comanchean Group: Fredericksburg Group Geo-order number: 9766 I have a few more images to go with this one.