These peaks are the high points of the 'Summit-Popof' Icefield,
which sits approximately 5 mi S of the terminus of the LeConte Glacier.
The peak at upper L center is identified as Pk 5780, 56°47'33.71"N, 132°19'13.58"W
The peak at center/background is Mt Sir Dieter/Pk 5709, 56°46'5.03"N, 132°20'47.82"W
Mt Sir Dieter is named for the spiritual leader of the Petersburg Alpine Club, Dieter Klose.
The glacier at center/foreground is a lateral/unnamed lobe of the LeConte Glacier.
The snowy summit at R is unnamed.