Calaveras County emerges from the Muso archive as a place with an unusually rich musical history. Associated with Agriculture in Calaveras County, California, Economy of Calaveras County, California, Geology of Calaveras County, California, Mercer cave, Mercer Caverns, Miracle Mountain Mine, Stereo cards of Calaveras County, California, The Celebrated Jumping Frog of Calaveras County, among others. Last updated September 2023.