·         Denver $25 per one-quarter gram (injectors usually do not purchase less than one-quarter gram)

·         Minn./ St. Paul $100 per gram

·         St. Louis $37 to $100 per gram

·         San Diego $50 to $80 per gram (purity in 1997 was 20 to 40 percent)

·         Seattle $80 to $120 per gram (purity was 35 to 90 percent)

·         San Francisco $60 to $100 per gram