Let's clear one myth out of the way. This is not an actual geyser. I mean sure it's called that, but in reality it's not. I think overall though, the name works better than calling it a man made air ventilation hole that excess ground water now escapes from under high pressure from a long vacant mine.
Why Big Mine Run? Was the mine big? Did it have the runs? I don't know but it could also simply be the name of the street it's located on so over time the name just stuck. Either way this geyser serves a purpose as without it the underground water would have nowhere to escape to except into local homeowners basements.
If you're coming, know that now, in summer, is not the best time. Ideally you're looking for early to mid-spring when there has been a good combination of snow melt and some recent rain. During our visit in April the water was a solid 6-7 feet in the air. After a long dry spell you may not get much past some gurgling.
Speaking of air, note that it does indeed stink by the geyser. That luscious sexy rotten egg scent is Sulphur from all of the mineral runoff. It's not bad then every so often the water will surge a bit and like Old Aunt Dinah Flo after $40 of Taco Bell, Wham!, it stinks.
One last obvious one is that at the end of the day this is not a tourist attraction. This is not a place to leave garbage just like there is no parking here for a reason and that reason is I'm pretty sure the geyser is on private property. If you take a look on Google or Trip Advisor that of course doesn't mean anything to a lot of dipshits out there. Be decent. Pull over, stay in the car and take your pictures/video and leave it at that.
Obviously this is not a destination stop by itself. This is at best a 5-10 minute junket which can easily be coupled with a visit to Centralia, Knoebels, Yuengling or the Pioneer Coal Mine.
But if you love a good roadside oddity/curiosity and are in the area, this one is a must see and is worth the brief detour. read more