Wood crotch develops when a tree trunk splits up in two or more branches. The place where this happens has different shaping of the wood pattern which creates a special look in the cut pieces. It’s not easy to come across high quality crotch slabs because they are challenging to dry. During the drying process, the crotch is prone to cracking and twisting like the end of the grain. Good crotch pieces can be found depending on the type of wood. Oak and ash crotch are harder to find, while walnut is more available and is often of a good quality. In the picture below there is an example of a table that I made in walnut with a beautiful crotch pattern.