I have a maple tree in my front yard which receives morning sun from the southeast. The tree bark started separating from the tree about 2 years ago. I have searched for information regarding what this could be. It seems like it might be the result of a frost crack but am not certain. I have attached a picture. Can you tell me what this could be, and steps I could take to save this tree? Thank you. Kristen Ebert Minnetrista, MN<personal data hidden> <personal data hidden>