I know this is outdated but I'll post in case anyone asks in the future as well
They do not stock trout, but they stock many tributaries and you will see the occasional trout. If you want consistent trout in the Blackstone, head south across the border to Rhode Island, they stock trout in the Blackstone river in Lincoln and Cumberland. If you want to stay local, search out the West Hill Dam area and the West River, which is one of the tributaries and is stocked pretty heavily.
That is not to say that fly fishing the Blackstone is worthless, there are plenty of Bass(small and large mouth), Carp, Pike, Panfish, etc to make it very worthwhile.
They do not stock trout, but they stock many tributaries and you will see the occasional trout. If you want consistent trout in the Blackstone, head south across the border to Rhode Island, they stock trout in the Blackstone river in Lincoln and Cumberland. If you want to stay local, search out the West Hill Dam area and the West River, which is one of the tributaries and is stocked pretty heavily.
That is not to say that fly fishing the Blackstone is worthless, there are plenty of Bass(small and large mouth), Carp, Pike, Panfish, etc to make it very worthwhile.