Thanks for suggestion about checking breed stanards but we actually know what they are. The thing is this cat is not pure bred so we know she will only have some of them. She actually had the rounded tip ears, almond shape eyes, the triangle formed by the ear and nose, the massive mane, her back legs are longer than her front legs, which leads us to believe she is more NFC. The thing is NFC, Maine Coon and Siberian are all northern breeds and do share quite a few traits that are dominant in all three. But who knows for sure? She could have any of numberous breeds in her. I don't think it is so important that my friend finds out she was just very curious so I thought I would get some suggestions and opinions. Thanks for the input.