San Francisco Chronicle: The valley known as Perazzo Meadows is a stunning landscape of woods and watershed habitat surrounded by glimmering Sierra Nevada peaks, but there is more to the high-country Shangri-La than sheer beauty. The 982-acre meadow northwest of Truckee is an integral piece of an unusual land grant made almost 150 years ago that left pristine forests, rivers and valuable wildlife habitat in the northern Sierra in a checkerboard pattern of alternating public and private …