Proposal:Natural=spire

Abstract

Some comments on Proposed features/cliff clarification request a dedicated tag for rock spires. So here it is. Feel free to take over this proposal if you want to speed it up.

Definition

A rock spire is an upright, needle-shaped rock, formed by the erosion of surrounding rock material. In some cases, the spire itself is protected by an uplying boulder. A spire can also be a remainder of the walls of a collapsed cave.

Mapping

Most rock spires have a diameter of up to a few meters. Therefore, mapping them as nodes should normally be sufficient. However, it is possible to micro-map them as areas.

Use this tag only for rocks whose height is a multiple of the longest horizontal diameter.

Rendering

One common and simple symbol is an upright isosceles triangle.

Useful combinations

• name=* The name of the spire.
• ele=* The elevation of its peak.
• height=* The relative height of the spire.
• diameter=* The diameter at ground level. Maybe useful when mapped as a node.

Impact

This deprecates natural=cliff on nodes which has essentially the same meaning, but is rarely used.

See also

• natural=rock for notable rocks with other shapes.
• natural=cliff for vertical edges.
• natural=bare_rock for rock surface.
• man_made=tower, building=tower, man_made=mast or man_made=obelisk for artificial spires.

Voting

Not yet.