Using Topofinder II
Topofinder II is still in development, but the following features are functional:
Zoom in - You can either click anywhere on the map or click and drag to draw a rectangle in any direction
Zoom out - Select the zoom out button and click on the map to zoom out
Pan - Select the pan
button. Click and drag on the map in any direction to pan to a new location
Full extent button - Clicking on this allows you to return to the full extent for Montana.
Selection rectangle - This works much like the zoom in tool. Clicking and dragging with it will highlight quads on the map and will pop up a window with a list of quads for downloading.
Query button - will pop up a window with a menu of various ways to locate places or areas on the map.
Location tool - Move mouse over map to get coordinates in State Plane, Latitude/Longitude, and UTM.
Note: All coordinates are based on the NAD83 datum.
Measure tool - Click on the map to start measuring. You can continue clicking around the map to find a total distance between several points. To start over, Alt-Click.
Area (Polygon) Measure tool - Click on the map to start measuring. You can continue clicking around the map to find a total area bound by several points. To start over, Alt-Click.
The navigation palette and scale bar are viewable by clicking on their respective buttons. You can use the navigation palette to move to another part of the map, either by dragging the red box or using the arrow buttons. (Shift-clicking a button will move 9X farther).
Use the radio buttons on the right side of the map to toggle between topo maps (DRGs) or aerial photos (DOQs). Sometimes you can't see images when the DOQ option is selected. Either you are not zoomed in far enough or there is no coverage for that area. There is a checkbox for adding township and range (PLSS) to the map when DOQs are selected.