I worked out some Lancaster County puzzle caches on Wednesday. Since I passed through Leola on my way home and since the solution to "Carl Friedrich Gauss" pointed to a roadside spot that seemed safe to access at night, I did that one as an after-dinner cache. I'll have to return to Leola during the day for the other puzzle caches.
And finally, I have an MPG measurement using E0 gas on this Lancaster round-trip. Apparently, my car gets 7% better MPG when I switch from E10 to E5 gas. It's E5 because I had half a tank of E10 when I added E0. This is a significant result because going by energy content alone, I'd expect a negligible difference of about 1.5%. However, I have to make more measurements in case this one is a fluke. Another excuse to go to Lancaster again. :)
H B #4 (Pennsylvania)
H B #6 (Pennsylvania)
H B #7 (Pennsylvania)
H B #5 (Pennsylvania)
Tunnel Tree (Pennsylvania)
Drumore Park Rocks (Pennsylvania)
In Loving Memory (Pennsylvania)
Something is Watching You!!!! (Pennsylvania)
full tank (Pennsylvania)
under pressure (Pennsylvania)
Viva Las Ammo Can! (Pennsylvania)
Who Has the Keys? (Pennsylvania)
Posey Road Hourglass (Pennsylvania)
Riverview Hourglass (Pennsylvania)
"On Solid Rock I Stand" (Pennsylvania)
Remember the Generators (Pennsylvania)
Carl Friedrich Gauss (Pennsylvania)