Gold Bug

This is a ~2 mile loop with hills and stairs and mines and pretty views. If you haven't been for a few months, they've added some new trails. Meet at the Liberty Claim Pavilion (the big thing with picnic tables under it near where you park).

More info: https://www.eldoradohiking.com/gold-bug-park-20.html and https://www.goldbugpark.org/