250,000 SCALE PROJECTS (2° X 3°)
1:250,000 scale mapping | NW Colombia
250,000 scale projects (2° x 3°)
For 1:250,000 scale projects Geologic Data Systems uses a variety of scale- appropriate geologic maps as a guide to inform new seamless, detailed geologic interpretations. The detailed structural, stratigraphic and geomorphic surface geologic interpretation is conducted using shaded relief and Landsat imagery, compiled at a 1:250,000 scale and generally delivered in an ArcGIS format. The base Landsat Imagery (ETM) and hillshaded DEM, at 30m to 90m resolution depending on data availability and project extent, are integrated with the geologic data for delivery.