TrueTopo

Data Layers

layers.truetopo.com

Geospatial layers for Alaska and the TrueTopo stack: BLM mining claims, DNR land status, USGS base maps, access & transportation, easements, and infrastructure. View by type (theme) or source (agency) in the app.

Use the layers

Map app

Toggle layers, change base map, and apply presets in the Layers panel.

Open app.truetopo.com

Documentation

Layer catalog, endpoints, and technical reference.

Docs: Layers

Data & API

Catalogs and APIs for programmatic access.

data.truetopo.com

Layer categories

Base map, reference, ownership, access & transportation, mining, easements, infrastructure, linkout. See docs.truetopo.com/layers and the in-app Layers panel for the full list and view modes.

Machine-readable catalog

JSON catalog of 95+ Alaska layers with endpoints, sources, and groups for programmatic use.

catalog.json — GET https://layers.truetopo.com/catalog.json