The Point Reyes peninsula is remarkably covered with numerous layers of human activity that have left sometimes overt, other times subtle changes on the landscape. Those changes, imposed upon a rugged coastal environment, were filtered through the lens of cultural values, traditions, lifeways, economies and technologies of people who emigrated from small and great distances over a period of several millennia though current time. Point Reyes' also preserves a number of historic structures, from farm houses, barns, and creameries to lighthouses and radio stations, which represent the ranching and maritime culture of the central California coast.