I get distracted easily and have mapped thousands of prospects as a part of a mining area. This is not as well mapped in OSM as most of these are historic and don’t occur as new for OSM. They are still a hazard that presents in the current day.
As such I got distracted mapping them https://www.openhistoricalmap.org/node/2093760807#map=20/39.46412/-119.34875&layers=O&date=1900&daterange=1800,2021
Adits are also a less than ideally mapped location as they often show an entrance and a direction of travel into a hill on a TOPO map that we could be including that OSM does not allow for that detail.
added more prospects https://www.openhistoricalmap.org/node/2093773209
and springs from TOPO maps in the state of Nevada.