Anyone shopping for health insurance in a Colorado resort town may feel like closing the laptop and schussing the slopes to ease frustration. These areas were just named the most expensive for medical coverage under the Affordable Care Act (ACA). Kaiser Health News -- which says its findings are based on recent data from the Kaiser Family Foundation, the federal HealthCare.gov website and state exchanges -- gives Colorado's Eagle, Garfield and Pitkin counties (including Aspen and Vail ski getaways) the highest premiums, at $483 a month. Rural regions of Georgia, Mississippi and Nevada are not far behind, as is a Connecticut suburb of New York City, all of Alaska and most of Wyoming. The premiums are based on the lowest price "silver" plan, which is mid-level coverage that most consumers are buying through the exchanges. Here are the 10 most costly areas, based on monthly premiums, according to Kaiser Health News: 1. $483 -- Colorado mountain resorts (Eagle, Garfield and Pitkin counties). Also, premiums in Colorado's Summit County are $462. 2. $461 -- Southwest Georgia (Baker, Calhoun, Clay, Crisp, Dougherty, Lee, Mitchell, Randolph, Schley, Sumter, Terrell and Worth counties). 3. $456 -- Rural Nevada (Esmeralda, Eureka, Humboldt, Lander, Lincoln, Elko, Mineral, Pershing, White Pine and Churchill counties). 4. $445 -- Western Wisconsin (Pierce, Polk and St. Croix counties). 5. $423 -- Southern Georgia (Ben Hill, Berrien, Brooks, Clinch, Colquitt, Cook, Decatur, Early, Echols, Grady, Irwin, Lanier, Lowndes, Miller, Seminole, Thomas, Tift and Turner counties). 6. $405 -- Most of Wyoming, but excluding Natrona and Laramie counties. 7. $399 -- Southeast Mississippi (George, Harrison, Jackson and Stone counties). Also, the lowest price plan in Hancock County is $447. 8. $395 -- All of Vermont. 9. $383 -- Southwest Connecticut (Fairfield County). 10. $381 -- All of Alaska. The Kaiser report says the lofty premiums in Colorado can be blamed on high costs for medical care in those areas. In other pricey regions, insurers are able to ask for more money because there is a limited number of hospitals and specialists available to patients.