Just south of Neihart, which is about 90 miles southeast from Great Falls, the Memorial Falls area is a "new" climbing area since route development ony began in 2014.
The rock is a very hard type called Neihart quartz and is only found in a few places in the world. Before climbers "discovered" it, the only people who paid a whole lot of attention to it were miners, and Neihart once was a busy mining town.
Most of the routes, and the longer ones at that, are at Prospector Crag, but at Upper Memorial Falls you can currently find bouldering, one good sport line, and a decent trad line. To the best of my knowledge, this page and the route page I submitted on MP are the only online sources of information for the trad route. Because the trad route is a pretty obvious line right next to a 5.7 sport route, I can't imagine I was the first person to climb it, and I welcome any information pertaining to who first climbed it and when.
Driving south from Neihart, look for a signed parking area for Memorial Falls on the left just after a crossing of Belt Creek. Park here and take trail past the lower and upper falls. Not long after passing the upper falls, cross the stream (the trail is fainter but still exists) and then head a few yards uphill to a prominent cliff that has a single bolted line on it.
For the bouldering routes, please see the MP page linked to previously.
None in July 2018.
Spring through fall.
There is dispersed camping available about a quarter-mile north and on the left.