Where is off-company-property and how far is it in October sky?

In "October Sky," off-company property refers to the area outside of the mine owned by the coal company where the protagonist and his friends can pursue their rocket-building activities without interference. This location is significant for the characters as it represents freedom and the ability to explore their passions. The distance to off-company property is not explicitly stated in the film, but it is depicted as being a short trek from their hometown, allowing them to escape the confines of their coal-mining environment.