GeoExplore Hub

Place-based geography

Read the map. Test the evidence. Understand the place.

GeoExplore Hub uses traceable maps and specific field cases to explain landforms, surface processes, hazards, and the choices people make around them.

Explore map Learn geography Read a case
Barrier-island study area
Marker: Assateague Island

Map: OpenStreetMap Standard, viewed 8 October 2026. Web Mercator. Scale changes with zoom; use the map scale at lower left. Marker is an orientation point, not a boundary.

Editorial status: reviewed pages are listed in the current collection. Older background drafts have been withdrawn from display and retained only as noindex archive notices until their maps, sources, and claims can be rebuilt.

Choose a route

Start with a task

Each route begins with something you can locate, measure, compare, or explain. Pages state what their evidence can and cannot support.

01 · Locate

Explore the study map

Find Assateague Island, read the scale, and identify the ocean and mainland sides.

 02 · Learn

Follow a map-reading path

Work through scale, legend, coordinates, and evidence in about 35 minutes.

 03 · Investigate

Study the 2014 Oso landslide

Separate mapped observations, likely triggers, consequences, and remaining uncertainty.

Reviewed samples

Built around evidence, not volume

These first pages establish the standard for later migrations. They name their location, observation period, source, geographic limits, and learning task.

Landform atlas

Assateague barrier island

Use island shape, inlet history, and management boundaries to understand migration along the Maryland–Virginia coast.

Open the field example

Working tool

Map scale & distance

Convert a measured distance into ground distance, switch units, and see why the result is only as good as the map scale.

Use the calculator

How to use this site

Observation is not explanation

A satellite image can show that a shoreline moved. It does not, by itself, prove which storm, current, engineering work, or sea-level trend caused the change. Our reviewed pages label direct observations, interpretations, and uncertainties separately.

Source standard: map and figure notes identify the dataset or map product, organization, observation or publication date, access date, geographic extent, coordinate system or resolution when relevant, license, and known limitation.