Hunterdon County area Buff Group
There are no Buff Groups that you can hit from Hunterdon County using either a Portable or Mobile radio, nor has there been. BNN does a great job covering this area, as well as Warren County, if you want to just have one-way communications.
Many people through the years have talked about about starting a buff group on a community repeater, the problem has always been that M&W is the only one around with a site, and theirs is UHF, where historically Fire was VHF-Low and EMS was VHF-High, so no-one had a UHF radio... Now, with the slow migration of units going over to UHF with the County simulcast perhaps there might be a glimmer of hope, albeit slight.
But, to answer your question, perhaps MFR covers it from up north, but you can't transmit nor can you receive them from Hunterdon County.