On Saturday, June 16 at 5 p.m. geologist Tom Cochrane will present “The Geology Around the Point Arena Lighthouse” as part of the Lighthouse Lecture Series.  Tom will be reviewing the past and present threats to the Point Arena Lighthouse area:  erosion, sea level rise, offshore and onshore oil drilling, as well as the history of the proposed nuclear power plant.  Admission is $5 and the lecture will be presented in the Fog Signal Building at 45500 Lighthouse Road, Point Arena.