When did this grow in our backyard?

So the last warm weekend of this year, we borrowed Grandads four wheelers and decided to check out what was behind our house in the hills. We went up Israel canyon road. What a fun surprise! It was so incredibly beautiful. we had no idea this was right in our backyard. We went up to the towers and it looked over the entire lake and the valleys on both sides. (Utah valley, and Eagle Mountain) We had so much fun. Eva goes into a trans on the Vroom Vrooms (Four wheelers) and Jake sang me songs the whole way.