Pine

I went to the cemetery on March 22, a snowy day, and saw this beautiful pine.

Its roots have started engulfing monuments.

It's a 5-needle pine, meaning the needles grow in bundles of five.

My guess was Pinus strobus, eastern white pine, but partly because that's one of the few pines I know. 

I later found out that there are only five native evergreens in Iowa: eastern white pine, redcedar, balsam fir, common juniper, and yew. 

That doesn't necessarily mean this is an eastern white pine; people plant non-natives all the time. I could not find a cone to confirm.