FYI for Americans: Once you get your last mile tracking number from Yanwen, you should be able to see your package on a map.

Hopefully this helps someone else who didn't know.

This is not your initial Yanwen tracking number that comes up when you buy something, but when it gets to the US and Yanwen assigns a last mile carrier number.

Don't use the link on your tracking page - go to yanwenexpress.com and put that last mile tracking number in.

My package has been out for delivery since yesterday and with some researching here, I saw someone had commented that was what they did. Sent an email to Yanwen about my package not being in my city even though it was "Out for Delivery" (I was polite about it). Now I'm watching my package slowly work it's way to me.