If visiting museums in Erdenet are on your list, you might want to check out the upcoming exhibitions at Museum of Orkhon Aimag. If you want to see more of the museums in Erdenet, Mining Museum isn't far either.
Friendship Monument is just one of the landmarks located 0.7 mi (1.1 km) from central Erdenet, so you might want to stop by for a few pics during your trip.
Sightseeing doesn't have to break the bank. For some things to do in Erdenet, try a visit to attractions like Copper Mine and Friendship Monument during your trip.