Vector Data Gateway

Forest Service Topographic Map Data

Files Dated April 15, 2013

The FSTopo database was originally populated with Cartographic Feature File (CFF) data. CFF data were derived from the standard Forest Service Primary Base Series (PBS) or Single Edition Series (SES) map as part of the Forest Service National Geographic Information System Plan. PBS and SES maps were developed from the U.S. Geological Survey 1:24,000-scale, 7.5-minute topographic map series, with enhancements and regular revisions to satisfy Forest Service needs.

Beginning in 2010, FSTopo database revisions are tracked by feature level metadata. This was implemented through the use of Production Linse Tool Set (PLTS) Metadata functionality. Creator, CreateDate, LastModBy, LastModDate fields contain text relative to an FSTopo edit session. External data imported into FSTopo contain the time stamp of the import. FSTopo Phase 2 Metadata

 

 

The following is an overview of the thematic layers that are represented in FSTopo data. Unless otherwise specified, the current source is the FSTopo Edit database, where a majority of data was originally derived from the Cartographic Feature File (CFF). Planned future sources are listed.

Layer Definitions

Cultural Feature Dataset: Building (points, polygons):
Most buildings are portrayed according to traditional SEQ specifications. Small buildings are portrayed as point features. Large building footprints are displayed as polygon features. School flags and house of worship crosses are displayed as separate point features relative to large building footprints. The planned future source is undetermined. Built-up Area (polygons): Urban areas where only landmark buildings are portrayed. The planned future source is undetermined. Culture (polygons, lines, points): Manmade features that are not portrayed in the Buildings, Recreation, Drainage, or Transportation themes. The planned future source is undetermined. Large Tank (points): Variable size point features, where the tank_radius field defines the size. Recreation/Forest Service Facilities (points): Recreational locations, such as campgrounds, picnic areas, trailheads. The layer also contains Forest Service offices and facilities. The planned future source is Infra Recreational Facilities, Offices, and Structures. Elevation values are displayed in the PBS Text layer. The planned future source is undetermined.

Elevation Feature Dataset: Spot Elevation (points):
Marks the location of spot elevations. Elevation values are displayed in the PBS Text layer. The planned future source is undetermined.

Geodetic Feature Dataset: Geodetic Control (points):
Vertical and Horizontal control locations. The planned future source it the National Geodetic Survey (NGS).

Hydrography Feature Dataset: Drainage (polygons, lines, points):
The planned future source is National Hydrographic Data (NHD). Offshore (lines, points): Offshore features, such as exposed rock, wreck, shoal, pile, coral reef, and large area outline. The planned future source is undetermined.

Landform Feature Dataset: Landforms (polygons, lines):
Surface features that have geographic significance according to SEQ specifications. The planned future source is undetermined.

Text Feature Dataset: PBS Text (Annotation):
Stand alone map text collected at scale of PBS. Text is categorized by annotation subclasses; Boundary, Civil Township, Culture, Landforms, Hydrographic, Trail Numbers, National Trails, Recreation, PLSS, Spot Elevations, Place Names, Control/Monuments. Text layers are separated into lower 48 and Alaska for map scale purposes. The planned future source is undetermined.

Transportation Feature Dataset: Airfield (lines, points):
Heliport, seaplane base, landing strip, airport outline, etc. The planned future source is undetermined. Arrows (lines): Variable length arrow, used to point to feature where labeling would otherwise be unclear. Example: Road number symbol pointing to road. Railroads (lines): The planned future source is undetermined. Road Shield (points): Interstate, U.S., state, county route marker, vertical and horizontal Forest Service road box. The name field is used to label the point symbol. Road shield layers are separated into lower 48 and Alaska for map scale purposes. The planned future source is Infra Travel Routes for Forest Service road boxes. The planned future source is undetermined for non FS routes. Transportation (lines, points): Contains features ranging from trails to highways. Map related point symbols include gate, berm, bridge abutment, etc. The future source is Infra Travel Routes for Forest Service routes. The future source is US Topo for interstate, U.S. route, and state routes. The future source is Infra Trails for Forest Service trails.