The ridge is named in association with Delchev Peak.

The ridge is named after the historic site of Oborishte in central Bulgaria.

The ridge was named after the Bulgarian town of Balchik.

The ridge was named by Daniel Boone when he passed through the area and noticed a form of bamboo growing there.

The ridge is named after the settlement of Snegotin in Southern Bulgaria.

The ridge is named after the town of Marengo, located on the moraine.

The ridge is named after him.

The ridge is named after the settlement of Aldomirovtsi in Western Bulgaria.

A ridge directly across the river from the island is named Devil's Backbone.

The ridge at the section of the rim where Opportunity arrived is named "Cape York."