The trail leads to a gold mine that was operated between 1893 and 1936. But already since 1908 the revenue was rather limited. The mining tunnels went as deep down as about 90 meters.
Legend says that the name was given when the first prospector, Johnny Lang, found this claim while looking for a lost horse.
It is a very nice hike of about 6,5 km and moderate strength.
The trail leads along the original mining road to the gold mine and is easy to find. Based on the (moderate) elevation change, you can enjoy beautiful views but will also pass by nice desert plants.
The trail is usually not very busy, as the length of the trail disencourages quite some visitors. Thus, enjoy the calm and explore one of the special places of the National Park.
The moderate trail can be extended to a longer more strenuous trail if you want to do a loop. The loop is about 10 km long.