Aspen Delineation - Lassen National Forest [ds372]

SDE Feature Class

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Post 2000, biota, California, Quaking aspen, Eagle Lake Ranger District, Lassen County, Lassen National Forest, environment, Populus tremuloides, Aspen


The database was designed to identify the location of each aspen stand in the Ranger District and assess it ecological condition. The Eagle Lake Ranger District and Lassen National Forest uses the database as a step in the process of evaluating the need of management intervention.


The database represents delineations of aspen stands associated with stand assessment data (LASSEN_NF_EAGLELAKE_PTS) collected in aspen stands in the in the Eagle Lake Ranger District, Lassen National Forest, Lassen County, California. Data were gathered during the summers of 2001-2005. Observations were conducted by trained Forest Service crews. Assessments were conducted within aspen stands in the region, or stands identified during field surveys. This dataset is considered to be a complete inventory of aspen in these watersheds, based on the extensive effort to survey all stands in the region. Aspen stands were assessed and delineated using a protocol developed by the lead investigators at the Eagle Lake Ranger District. Assessments included information describing the ecological condition of the aspen stand, and if browsing of the aspen was present or absent. Associated with this polygon layer is a point layer (LASSEN_NF_EAGLELAKE_PTS) containing aspen stand assessments conducted in conjunction with the aspen stand delineations. Data Compilation: The Aspen Delineation Project (ADP) is a collaborative effort of the U.S. Forest Service's Pacific Southwest Region, the California Department of Fish and Games Resource Assessment Program, and the California Office of Bureau of Land Management. Principal Investigator for ADP is David Burton; visit: for more information regarding the ADP. The Department of Fish and Games, Resource Assessment Program compiled this information from the collaborating agencies and other researchers, and formatted the data into a common database for the purpose of facilitating access to data related to the conservation of Quaking Aspen in California. This information portal falls within the ADP goals to help agencies and land managers identify, map, treat, and monitor aspen habitats. This dataset is a portion of a master database compiled during a year long effort in 2005 to pull together current GIS layers and maps depicting Aspen communities in California.


Lassen National Forest, Eagle Lake District

Use limitations

No constraints, public data


West -121.299161 East -120.587924
North 40.846831 South 40.207959

Scale Range

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource environment, biota

* Content type Downloadable Data

Place keywords California, Eagle Lake Ranger District, Lassen County, Lassen National Forest

Temporal keywords Post 2000

Theme keywords biota, environment

Title ISO 19115 Topic Category

Theme keywords Quaking aspen, Populus tremuloides, Aspen


* Title DS0372_20071206

Edition 1

Presentation formats * digital map

Citation Contacts

Responsible party
Organization's name Lassen National Forest
Contact's role originator

Resource Details

Dataset languages English(UNITED STATES)

Status under development
Spatial representation type * vector

Graphic overview
File name
File description Images
File type JPG

* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS

Lassen National Forest, Eagle Lake District
ArcGIS item properties
* Name DS0372_20071206
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection


publication date
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -121.299161
* East longitude -120.587924
* North latitude 40.846831
* South latitude 40.207959
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13502960.825000
* East longitude -13423786.327000
* South latitude 4896208.503600
* North latitude 4989775.519300
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Tom Rickman
Organization's name Eagle Lake Ranger District, Lassen National Forest
Contact's position Wildlife Biologist
Contact's role point of contact

Contact information
Voice (530) 257-4188

Type postal
Delivery point 2070 Orange Dr.
City Penryn
Administrative area CA
Postal code 95663
Country US
e-mail address

Resource Maintenance

Resource maintenance
Update frequency as needed

Resource Constraints

Legal constraints
Other constraints
No constraints, public data
Security constraints
Classification system NA

Additional restrictions

Limitations of use
No constraints, public data

Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_WGS_1984
* Projection WGS_1984_Web_Mercator_Auxiliary_Sphere
* Coordinate reference details
Projected coordinate system
Well-known identifier 102100
X origin -20037700
Y origin -30241100
XY scale 10000
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.001
Z tolerance 2
M tolerance 2
High precision true
Latest well-known identifier 3857
Well-known text PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]

Reference system identifier
* Value 3857
* Codespace EPSG
* Version 7.11.2

Spatial Data Properties

* Level of topology for this dataset geometry only

Geometric objects
Feature class name DS0372_20071206
* Object type composite
* Object count 702

ArcGIS Feature Class Properties
Feature class name DS0372_20071206
* Feature type Simple
* Geometry type Polygon
* Has topology FALSE
* Feature count 702
* Spatial index TRUE
* Linear referencing FALSE

Data Quality


Process step
When the process occurred 2007-12-06
Edited original metadata by adding ISO keywords.

Process contact
Individual's name Kristina White
Organization's name California Department of Fish and Game
Contact's role processor

Contact information

Geoprocessing history

Date 2011-07-2108:53:59
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No

Date 2013-06-2114:53:23
Tool location c:\program files (x86)\arcgis\desktop10.1\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Distribution format
* Name SDE Feature Class

Transfer options
Online source

Online source


Details for object DS0372_20071206
* Type Feature Class
* Row count 702

* Data type OID
* Width 4
* Precision 10
* Scale 0
* Field description
Internal feature number.
* Description source
* Description of values
Sequential unique whole numbers that are automatically generated.

* Alias KEY_CODE
* Data type String
* Width 10
* Precision 0
* Scale 0
Field description
Unique Aspen Stand identifier. The letter is the code for the data source name and the number is an auto-number.
Description source

* Alias UNQ_ASP_ID
* Data type String
* Width 25
* Precision 0
* Scale 0
Field description
A combination of the Unique Aspen Stand identifier and the date of the data collection or 00/00/YYYY.
Description source

* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Name of the data source.
Description source
List of values
Value Lassen NF, Eagle Lake
Description Name for Source "Ha"

Value Lassen NF, Eagle Lake
Description Name for Source "Hb"

Value Lassen NF, Eagle Lake
Description Name for Source "Hc"

* Alias Shape
* Data type Geometry
* Width 4
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
* Description of values
Coordinates defining the features.

Field Shape.STArea()
* Alias Shape.STArea()
* Data type Double
* Width 0
* Precision 0
* Scale 0

Field Shape.STLength()
* Alias Shape.STLength()
* Data type Double
* Width 0
* Precision 0
* Scale 0

Metadata Details

Metadata language English(UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format

Scope of the data described by the metadata dataset
Scope name * dataset

* Last update 2014-04-28

ArcGIS metadata properties
Metadata format ArcGIS1.0
Metadata style FGDC CSDGM Metadata

Created in ArcGIS for the item 2014-03-0616:10:38
Last modified in ArcGIS for the item 2014-04-2810:21:52

Automatic updates
Have been performed Yes
Last update 2014-04-2810:21:52

Metadata Contacts

Metadata contact
Individual's name Chris Stermer
Organization's name California Department of Fish and Games, Resource Assessment Program
Contact's role point of contact

Contact information
Voice 916-445-2626

City Sacramento
Administrative area California
Postal code 95814

Thumbnail and Enclosures


Enclosure type File
Description of enclosure original metadata
Original metadata document, which was translated yes
Source metadata format fgdc