USGS 12181090 SOUTH CASCADE MIDDLE TARN NEAR MARBLEMOUNT, WA
Skagit County, Washington
Hydrologic Unit Code 17110005
Latitude 48°22'08", Longitude 121°03'32"
NAD27
Drainage area 1.72 square miles
Gage datum 5,379 feet above NGVD29
Location of the site in Washington