---
title: "Maps"
description: "MapLibre GL components for a base map, markers, and GeoJSON choropleth overlays, using free CartoDB tiles."
category: "Data Viz"
---

# Maps

> Generated from `mcp/patterns.registry.json` — do not edit by hand; change the registry and run `bun run patterns:build`.

_Index card — the docs below are the canonical explanation; deep-tier pattern pages additionally carry invariants and emulation notes._

**Category:** Data Viz · **Tier:** light · **Risk:** low — frontend only

MapLibre GL components for a base map, markers, and GeoJSON choropleth overlays, using free CartoDB tiles.

**When to use:** Use when a page needs an interactive WebGL map with markers or geographic data overlays.

## Docs

- [docs/stack/capabilities/viz.md](/docs/stack/viz) ([GitHub](https://github.com/ApeDevil/v10r/blob/main/docs/stack/capabilities/viz.md) · [GitLab](https://gitlab.com/ApeDevil/v10r/-/blob/main/docs/stack/capabilities/viz.md))

## Code

- `src/lib/components/viz/map/` ([GitHub](https://github.com/ApeDevil/v10r/tree/main/src/lib/components/viz/map) · [GitLab](https://gitlab.com/ApeDevil/v10r/-/tree/main/src/lib/components/viz/map))

## Proof

- [`/showcases/viz/maps`](/showcases/viz/maps)

---

_Machine-readable record: `viz-maps` in `mcp/patterns.registry.json`._