Until the 1960s or so, aid climbing was normal practice in most climbing areas.

Today aid climbing uses a separate scale from A0 through A5.

Originally, Class 6 was used to grade aid climbing.

Ewbank also developed an open ended "M" system for aid climbing.

Aid climbing has its own ranking system, using a separate scale from A0 through A5.

They are often used in aid climbing or for organizing (racking) gear.

If weight is put on the rope during the climb, it is a form of aid climbing.

Almost entirely aid climbing, with many bolts (125), the climb is given worldwide recognition.

The frog has tiny adhesive disks on its toes, which aid climbing of plants.

Their successful ascent took over two days, and involved both aid climbing and free climbing.

While primarily considered a free climbing system, an aid climbing designation is sometimes appended.

This form of climbing can be conducted free or as a form of aid climbing.

Commonly used for abseiling or aid climbing.

Equipment used in aid climbing.

The original Sierra Club grading system also had a Class 6, for artificial, or aid climbing.

C6 or A6 does not exist, since the aid climbing scale was developed as discrete scale that is not open ended.

While clear in its contrast to aid climbing, the term free climbing is nonetheless prone to misunderstanding and misuse.

Usually found in aid climbing, they are occasionally utilized in free climbing as extremely marginal protection.

In rock climbing, some of the earlier first ascents, particularly for difficult routes, involved a mix of free and aid climbing.

Though this would normally be considered a form of aid climbing, it is here accepted as a form of free climbing.

The climbing team relied heavily on aid climbing, using rope, pitons and expansion bolts to make it to the summit.

Strictly speaking this type of speed climbing is not a style but a combination or perhaps a type of aid climbing.

Wiessner was known for his outstanding free climbing technique; Kraus' specialty was aid climbing.

They are most often used for placements, often extremely marginal, in aid climbing, although they also feature in some extreme free routes.

Generally the climbing style is free climbing (as opposed to aid climbing) and the rock is either gritstone or limestone.