llamadamadingeringer
this is correct as is, although it is on Naknek Lake it is referred to as Lake Brooks Seaplane Base in the FAA sectional: 

https://en.wikipedia.org/wiki/Lake_Brooks_Seaplane_Base

https://www.airnav.com/airport/5Z9

https://vfrmap.com/?type=vfrc&lat=58.555&lon=-155.777&zoom=10&api_key=763xxE1MJHyhr48DlAP2qQ