Relief map of Lake Tahoe showing uniformity of snow cover, verso Image Read more about Relief map of Lake Tahoe showing uniformity of snow cover, verso
Relief map of Lake Tahoe showing uniformity of snow cover Image Read more about Relief map of Lake Tahoe showing uniformity of snow cover
Map of Truckee-Carson irrigation project; Ground plan of observatory building Image Read more about Map of Truckee-Carson irrigation project; Ground plan of observatory building
