Location of the McGinnis
Glacier
Source: maps.google.com
The red box shows the area enlarged below

McGinnis Glacier (circled in red) has two tributaries (Northwest and
Southeast), which are no longer connected. The much larger Black Rapids
and Susitna Glaciers are known to surge, and Trident and Hayes Glaciers
are believed to have surged in the past (note the looped moraines on
Trident Glacier). The black line shows the trace of the Denali Fault.
If you'd like to check out the area in 3D point your browser to:
www.earthslot.org or
Google Earth
The glacier is at 63o 35' N and 146o 08' W