Topographic Base Maps Topographic Base Maps Objective – Displays surface features Objective – Displays surface features (topography, roads, lakes & river, cultural (topography, roads, lakes & river, cultural features) and a grid system (TRS, UTM, Lat/Lon) features) and a grid system (TRS, UTM, Lat/Lon) that allow one to readily locate the geologic that allow one to readily locate the geologic features portrayed features portrayed Best choice of base map is largely dependent on Best choice of base map is largely dependent on the map scale the map scale 1:24,000 scale (7.5’ USGS quadrangle) 1:100,000 scale (30’x60’ USGS sheet) GEOL 3000 GEOL 3000
Topographic Base Maps. Objective – Displays surface features (topography, roads, lakes & river, cultural features) and a grid system (TRS, UTM, Lat/Lon) that allow one to readily locate the geologic features portrayed Best choice of base map is largely dependent on the map scale. - PowerPoint PPT Presentation
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Topographic Base MapsTopographic Base Maps Objective – Displays surface features (topography, Objective – Displays surface features (topography,
roads, lakes & river, cultural features) and a grid roads, lakes & river, cultural features) and a grid system (TRS, UTM, Lat/Lon) that allow one to system (TRS, UTM, Lat/Lon) that allow one to readily locate the geologic features portrayedreadily locate the geologic features portrayed
Best choice of base map is largely dependent on Best choice of base map is largely dependent on the map scale the map scale