How to track a missing iPhone?
Yesterday I walked to my friends house, who lives in the same subdivision as me, through heavy snow. When I got to my friend's, my iPhone wasn't in my pocket. It somehow fell in the snow. I tried using Find my iPhone, and it said all of the other devices connected my apple ID are online, but my iPhone is offline. I've tried using free online trackers, but they either aren't accurate and say its in some other city 5 miles away, or they make you give your credit card for some 30 dollar a month subscription. I've also tried calling it over and over again while retracing my steps, but i couldn't hear it. When I sent my iPhone a text from another iPhone, the "delivered" message didn't pop up on the sender's iPhone.
Is there any way I can track my iPhone accurately and free? My provider is Verizon, would they be able to track the exact location of my phone?
Also, I really need to find it because I don't have any more upgrades available on my plan, so I can't get a new phone. Would the moisture and low temperature of the snow have killed the phone by now? I lost it yesterday, around 20 hours ago, if that helps.