Revisions: The data set is currently under revision. No formal revision schedule or revision numbering ro release system is in place. Revisions are done on an as-needed, project basis. The exception to this is that a systematic state wide revision of BLM lands only was completed in December, 1998 in preparation for use in the production of a new BLM California State Map - a lithographic cartographic product. BLM will also use this update in cooperating with the Teale Data Center in helping them to maintain their version of the data set. This information will be supplied to Teale in the first quarter of 1999. Other groups of State and Federal agencies are clammoring for a thorough update to the data set, and a major version release may occur through Teale some time prior to 2005.
Review Applied to the Data: FRRAP reviewed status information and edge mathcing for the data set Teale Data Center reviewed the data set against the PLSS. The BLM is currently reviewing the status data against our Master Title Plats on a township by township basis in a systematic fashion. BLM CA is also reviewing the coordinate geometry of the nodes and arcs where GCDB data is available.
Related Spatial and Tabular Data Sets: Additional tabular data sets area as follows: owner.lut is a look up table used for shading the data set on screen and for plotting. It contains the owner item codes from ownpca.pat and a shade value for an internally developed shade table called inkjetown.shd - developed for HP 755 cm ink jet plotters. The table owner.name contains the owner codes stored in ownpca.pat, with the owner name in another item. Owner.met contains metadata at the feature level for edits of the status, gcdb coordinate use on nodes and arcs, and editing of the arcs.
Other Reference Cited: FRRAP, CA Department of Forestry, 1990, California Land Ownership Layer, CA Dept of Forestry, Sacramento, CA.
Notes: The data set maintained by BLM CA was placed in MOSS at the time that it was purchased from the Teale Data Center. Subsequently, the data set was moved to a Unix based Arc/Info double precision coverage where it now resides. More recently, the coverage was split into many coverages, each covering a one degree area.
OWNPCA.PAT:
COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
1 AREA 8 18 F 5
9 PERIMETER 8 18 F 5
17 OWNPCA# 4 5 B -
21 OWNPCA-ID 4 5 B -
25 OWNER 3 3 I -
28 MANAGER 3 3 I -
31 ACQUISITION_ID 6 6 I -
owner, manager, and acquisition_id are the only user (non-system)
defined columns in ownpaxllLLL.pat. owner is defined to be the
entity that actually owns the parcel. valid values of owner are
integers in the range 0 through 99 as follows:
1 NIPF
2 Forest Industry
5 Water
10 County, City, Regional lands
11 County, City, Regional Parks/Preserves
20 State Lands / State Lands Commission
21 CDF
23 Cal. Dept. of Parks and Recreation
24 Cal. Dept. of Fish and Game
30 Military
39 Other Federal
40 Bureau of Reclamation
50 US Fish and Wildlife Service
55 National Seashore, National Recreation Area
60 National Monument
65 National Park Service
70 Bureau of Land Management
80 US Forest Service - Miscellaneous
81 Angeles National Forest
82 Cleveland National Forest
83 Eldorado National Forest
84 Inyo National Forest
85 Klamath National Forest
86 Lassen National Forest
87 Los Padres National Forest
88 Mendocino National Forest
89 Modic National Forest
90 Plumas National Forest
91 San Bernardino National Forest
92 Sequoia National Forest
93 Shasta-Trinity National Forest
94 Sierra National Forest
95 Six Rivers national Forest
96 Stanislaus National Forest
97 Tahoe National Forest
98 Toiyabe National Forest
99 Lake Tahoe Basin Management Unit
manager is the entity that has functional managemnt of the parcel,
regardless of what entity owns the parcel. manager uses the same
coding scheme as owner. acquisition_id is for BLM CA internal use,
and is used to track lands aquired since a date of about 1985.
OWNPAXllLLL.AAT:
COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
1 FNODE# 4 5 B -
5 TNODE# 4 5 B -
9 LPOLY# 4 5 B -
13 RPOLY# 4 5 B -
17 LENGTH 8 18 F 5
25 OWNPAXllLLL# 4 5 B -
29 OWNPAXllLLL-ID 4 5 B -
all attributes in ownpaxllLLL.aat are system generated.
OWNPAXllLLL.NAT:
COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME
1 ARC# 4 5 B -
5 OWNPAXllLLL# 4 5 B -
9 OWNPAXllLLL-ID 4 5 B -
all attributes in ownpaxllLLL.nat are system generated.