Angels Camp, also known as City of Angels and formerly Angel's Camp, Angels, Angels City, Carson's Creek and Clearlake, is the only incorporated city in Calaveras County, California, United States. The population was 3,835 at the 2010 census, up from 3,004 at the 2000 census. It lies at an elevation of 1378 feet (420 m).
Mark Twain based his short story "The Celebrated Jumping Frog of Calaveras County" on a story he claimed he heard at the Angels Hotel in 1865. The event is commemorated with a Jumping Frog Jubilee each May at the Calaveras County Fairgrounds, just east of the city. Because of this, Angels Camp is sometimes referred to as "Frogtown."
The city is California Historical Landmark #287.(Wikipedia)