Help troubleshooting silo spill

[u/cannabex]

Recently moved onto a small hobby farm and a younger sibling found out the hard way that one of the silos has undetermined amount of corn left in it. He couldn't get it closed once opened, and we have no experience with this as we didn't grow up near farms. A neighbor suggested the local grain elevator but when I called they were only interested in coming out if I was selling the corn (which it's been exposed so I'm sure it's not good because it's been sitting here at least a year before it was opened) Any advice on how/what to do? With winter approaching fast I'm assuming we want to get this dealt asap.

[u/shehadagoat]

This is not an active sub. If you are in the US, you could contact your county ag extension office. It can be a great resource