Alaska is a very large state; the easiest way I could think to list it is by region. Although the rest of my page lists the gold locations by county, I think the best way to do this is to list the area. Therefore you will need to know the regions that you are interested in. Most Alaskan prospectors don't have a problem with this, but if you have difficulty, feel free to email me.
Gold was found in 1848 in Kenai River, on a peninsula with the same name, by a Russian mining engineer. After the United States purchased "Seward's Folly" and miners had left the disappointment of mining in the Cassiar gold locations, gold was discovered southeast of Juneau around Windham and Sumdum Bays. Miners found major lode veins near Juneau in 1880.
Alaska Government Information
For more information, you should see U. S. Geological paper # 610. This paper describes 43 mining districts that produced more than 10,000 ounces. As stated in this paper, the total gold production is 29,225,071 ounces.
There are so many gold localities in Alaska that the U. S. Geological paper is insufficient. You can also use U. S. Geological Survey Mineral Investigations Resource Map MR-32 and Alaska's Lode Gold and Silver Occurrences. Also, MR-38 Placer Gold Occurrences in Alaska.
Many large areas are withdrawn from mineral entry, so check before mining.