Identification: Unknown Tree in my backyard

There is a young fir tree growing in my backyard but it isn't a Douglas fir - just wondering if it is grand fir? The needles are flat and just grow on opposite sides of the stem rather than all around.

Any ideas?

 

Douglas fir.

 

That's normal for Douglas-fir for the needles to be spread flatter on shaded foliage like this. If it was in full sun, the leaves would be more all-round the shoot as you expected.

 

Thanks!