2011-D Glacier

Denver's 2011 Glacier production came in at 31,200,000 pieces, running 800,000 ahead of Philadelphia's 30,400,000 and posting the highest D-mint figure of the 2011 ATB cycle through that point in the year. The Denver mintage settled into the 30 to 31 million range across the first three 2011 designs, a notable contraction from the consistent 35-million-plus Denver totals seen in 2010. Barbara Fox's reverse, Mount Reynolds with a mountain goat in the foreground, remained identical between mints; the D mintmark beside the Washington portrait on the obverse marks the Denver striking.

Strike characteristics on the Denver issue track the same grading concerns as Philadelphia. The mountain goat's hair texture and the rock detail on the peak are the two grading-decisive features, and Denver dies during the 2011 production run held both reasonably well across the bulk of the print. Late-die-state pieces show softening on the goat's coat first, with the peak detail holding longer. The clad composition is standard: 75% copper-nickel outer layers over a pure copper core (5.67 grams, 24.26 mm diameter, reeded edge). Authentication concerns are negligible for circulation-strike modern clad coinage, and the high-grade slabbed market runs through PCGS and NGC (the two leading third-party grading services).

The 2011-D Glacier is a Regular common date with premium tiers concentrated at MS67 and a steeper jump at MS68 where population reports thin. Roll hunters in the upper Rockies and northern plains occasionally turn up MS65 examples from original bank-wrapped rolls, though the yield has dropped substantially since the design's release year. Series builders chasing the complete 56-design ATB run in slabbed MS67 typically acquire the 2011 P-D Glacier pair together; both are well-supplied at that grade and priced as a tier rather than as individuals. The Denver issue's slightly higher mintage relative to Philadelphia has not translated to a meaningful price spread. For the broader story of the ATB program, the 2008 authorizing legislation, and the series' design arc, see the Washington ATB series history.