The best way I could figure out was to take a train from Newcastle to Hexham, and from the train station bus stop there, get on a bus that goes out to Haltwhistle, stopping along the way a bunch. I got a day pass for about 12 quid, and off I went.
My first stop was at Chesters Roman Fort. I bought myself a membership in English Heritage for 54 quid. Let's see if it's worth it for the length of my visit. (6.60 pounds entry at Chesters.)
Bath, in 2011, but still, way cool!)
Then I got back on the bus and went to Housesteads Roman Fort (7.5 pounds). Maybe even cooler than Chesters Roman Fort. At any rate, right up there!
Then I got back on the bus; the day was running down, and I needed to choose between Vindolanda and the Roman Army Museum. I chose the museum and was amused by this sign:
Finally, I took the bus all the way back to the train station at Hexham, and headed back to Newcastle.
All in all, this was a really interesting day out!