Does the law stop us from selling photos of covered bridges in state parks?

We took photos of covered bridges and have some outdoor pictures of places no people. We were thinking to sell some of these photos as a side business. Does the law stop us from selling a bridge that would be in a state park?

Denise on July 23, 2012

I don’t know of any law that would stop you. Photos taken from public viewpoints, such as state parks, are generally free to use.