It's possible. I learned about it yesterday, and no, you don't need a sugar maple for maple syrup. Red, black, even silver maples will work - they just don't give up as much sap. Plus, we tend to use systemics on our trees, and if a tree is treated, you don't want to be eating it. If you're interested, now is the time to be tapping in Boise. The basic ratio is 40:1. So, 40 cups of sap will boil down to 1 cup of syrup. A maple the size of this trunk will give about a liter of sap per day, until it seals itself off and refuses to donate any more.