In reading reviews about Northern California's Castle Lake, one word came up in almost every one: "beautiful". I agree wholeheartily with that description, and that's why I titled this photo and the related blog "Beautiful Castle Lake." This small lake is in the Trinity Mountains located in Siskiyou County California. Castle Lake is a tarn (lake) formed by glacial activity some 10,000 years ago during the Pleistocene Era. Today it is a jewel which attracts those who are looking for a restful and peaceful spot. It's a place I love to go to ... and capture some of its beauty in my photography.