The Cathedral Group are classic alpine peaks, with pyramidal shapes caused by glacial motion.
The Cathedral Group has several high cirques, arêtes as well as hanging and U-shaped valleys which are all the work of glacial activity.
At the base of the Cathedral Group, several glacial lakes can be found, including Jenny, Bradley and Taggart Lakes, all of which were formed when the glaciers of the last ice age retreated, leaving behind terminal moraines which acted as natural dams.
Some geographers only include Grand Teton, Mount Owen and Teewinot Mountain as part of the Cathedral Group proper.
Similarity of shape and isolation from other high peaks of the range by the deep Cascade and Death Canyons convince others to place all the major peaks between the canyons within the group.