Inactive, yeah. Abandoned, probably not. Abandoning a railroad RoW means giving up all rights to it, something most railroads are reluctant to do, because that pretty much eliminates the possibility of EVER getting that RoW back.
There's a bit of a bru-ha-ha up this way regarding this. Many of these old RR beds have now become ATV/snowmobile trails, with ownership retained by the RR or some rail-related entity. In the last couple years that entity has rescinded permission to use these for recreational purposes, saying that they plan to restore rail service, even though those tracks haven't seen a train in decades. This has been quite disruptive to the OHRV community with major sections of trail now off limits. Outdoor tourism is a big part of the economy here.
It's been so long since they've been used/maintained that the rail bed has significantly deteriorated, to the point where everything will need to be completely rebuilt, something that's gonna cost $$$$$. I see shirt loss here. I just don't see enough potential to EVER recover that kind of investment.