Gas prices have been dropping in the Sacramento Valley, but not so much in the foothills. The price for regular at the ARCO A-M-P-M in Grass Valley is two dollars, 99-point-nine cents for the third consecutive week. That station is normally the cheapest in western Nevada County, but a few other stations have dropped slightly lower over the last couple of weeks. The Quick Stop on Hughes Road in Grass Valley was at 2-95-9 for regular this morning, and has been at that price for about a week. You can get gas for under 2-70 a gallon in Sacramento.