Us Customs 1141 Highway 1 Porthill, ID 83853 Phone : (208) 267-5309 Elk Mountain Farms Highway 1 Porthill, ID 83853 Phone : (208) 267-7714 Porthill Mercantile & Bistro Unknown P.o. Box 366 Porthill, ID 83853 Phone : () - Helping Hand 100 Maine St Porthill, ID 83853 Phone : (208) 267-7184 Post Office - Porthill 100 County Road 51 Porthill, ID 83853 Phone : (208) 267-2687 Porthill Mercantile 101 Main St Porthill, ID 83853 Phone : (208) 267-2128 Kootenai Valley Flying Service Copeland Porthill, ID 83853 Phone : (208) 267-5180 Northwest Duty Free Stores 777 County Road 51 Porthill, ID 83853 Phone : (208) 267-5662 United States Government--immigration & Naturalization Service, Immigration Service Porthill, ID 83853 Phone : (208) 267-5309 United States Government--forest Service, Us Customs 1141 Highway 1 Porthill, ID 83853 Phone : (208) 267-5309