What Tree Is It?

Leaves Appear 3-Lobed

Select the image that best matches your sample

End lobe long, more than 1/2 length of leaf, leaf 1 1/2 to 3 1/2 inches long and longer than wide
Amur Maple

End lobe shorter, less than 1/2 length of leaf, leaf 2 1/2 to 4 inches long and as wide as long
Red Maple