I suspect woodchuck should be the same. I only used the fat from inside the cavity. Outside fat makes hard tallow. The inner fat was
literally dripping, oil. After handling, I had to wash my hands twice with Dawn dish soap to get the oil off. It also made a good waterproof
boot dressing. An old logger told me about marmot oil, back in about 1976 or 77. I hiked up to the top of Hudson's Bay Mountain to shoot
some. The very next year, they were on the protected list. Hoary Marmots. They were very good eating, too.