Whatcom County had 63 lode mines and 15 placers that produced 89,156 ounces of lode gold and 2,425 ounces of placer gold between 1903 and 1959. In the extreme east part of county in the middle of the Cascade Range between latitude 48 degrees 45 minutes and 48 degrees 50 minutes, longitude 120 degrees 45 minutes and 121 degrees 0 minutes, is the Slate Creek District. Nearly all regional creeks and streams, in bed and bench gravels and in ancient channel terraces contain abundant placer gold. In the Harts Pass area, on Mill Creek, in sections 30 and 31 T37N R17E, the Azurite Mine, which can be accessed from the Methow Valley in Okanogan County and over the pass, was a good producer. 5 miles northwest of that by the pass road, in section 33 T38N R17E, is the Mammoth Mine, which was the largest producer in the district. 6 miles northwest of the pass and 2 miles north of the New Light Mill, in SW 1/4 section 26, the Chancellor Mine. 7 miles northwest of the pass, in the center of S 1/2 of section 27, is the New Light Mine. 10 miles northwest of the pass, at the head of Barron Creek, in NW 1/4 section 27, is the Baltimore Mine. On both sides of the Cascade summit about 10 miles south of Canada, is the Gold Ridge Mine. Near the head of Cascade Creek, in SW 1/4 section 24 T38N R16E, is the Anacortes Mine. In Allen Basin, in section 34 T38N R17E, the Allen Basin Mine is located.
Out of Glacier by 5 miles in section 36 T40N R7E is the First Chance Mine.
Mount Baker Lodge
Near Mount Baker Lodge is the Iron Cap Mine. West of Wells Creek and South of the North Fork of the Nooksack River, 2 miles by trail from the Nooksack Forest Camp, in section 6 T39N R8E, is the Great Excelsior Mine. Four miles below Mount Baker Lodge, near the Highway, in section 20 T39N R9E is the Verona Mine.
Near the E 1/4 corner section 35 T40N R4E is the Nooksack Mine.
Shuksan, is in the Mount Baker District, in the north central part of the county, between latitude 48 degrees 50 minutes and 49 degrees 0 minutes N, longitude 122 degrees 25 minutes and 122 degrees 35 minutes W, on the North side of Mount Baker. Northeast of Shuksan, about 1 mile southeast of Twin Lakes, near the head of the West Fork of Silesia Creek, in SE 1/4 section 15 T40N R9E is the Lone Jack Mine which was a major producer. On the south side of Red Mountain, there is a trail from Twin Lakes, in SW 1/4 section 4 is the Gargett Mine. North of Shuksan 2 miles, on Swap Creek, in NW 1/4 section 21 is the Evergreen Mine. Two miles south of Canada, in NE 1/4 section 4 is the Boundary Red Mountain Mine, which is accessible by road and trail from Chilliwack, B.C.. There are very many other mines in the area.