Most of the mining population settled in two different places, one being called Nelsonville and the other Lowertown or Big House.

In 1859, a road was ordered built by the County Board of Supervisors from Placerville to Mosquito Village.

In 1867, the “Swinging Bridge” was built on Mosquito Road, now a County Historical Landmark.

In 1907, Finnon Lake was completed and later became a state owned, county leased recreation area run by a private concessionaire.

After World War II, Frank Andre – the legendary “Goat Doctor” faith healer – lived here until he died in 1959.

In 1968, the Swansboro subdivision was started with property purchased from the Swansborough, Darr, Morton, and Lawyer families.

[6] Nearby downtown Placerville was a central hub for the Mother Lode region's mining operations.

[7] The town had many services, including transportation (of people and goods), lodging, banking, and had a market and general store.

[11] Swansboro has cool, frequently wet winters and hot, dry summers, creating a typically Californian Mediterranean climate (Köppen Csa).

California State Route 49 runs north and south, connecting the city with the other major communities in the Sierra Nevada foothills.