Mineral Resources On-Line Spatial Data
Interactive maps || Data download
AK Department of Natural Resour, Land Records Information Section, 20011019, Mining Claims and Prospecting Sites in Alaska - Federal and State: Boundaries and Resources minefs, ADNR, LRIS, Anchorage, AK.Online Links:
- <http://www.dnr.state.ak.us/>
- <http://www.asgdc.state.ak.us/metadata/vector/resource/mining/blmclaims.html>
This is a Vector data set. It contains the following vector data types (SDTS terminology):
The map projection used is Albers Conical Equal Area.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 1.0
Ordinates (y-coordinates) are specified to the nearest 1.0
Planar coordinates are specified in METERS
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378206.4.
The flattening of the ellipsoid used is 1/294.98.
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 20225 |
Format of values is like MtttTrrrR where
in place of M may be one of
M = Meridian
C = Copper River
F = Fairbanks
K = Kateel
S = Seward
U = Umiat
ttt = Township number (always zero filled)
in place of T,
N = North of baseline
S = South of baseline
rrr = Range number (always zero filled)
in place of R
E = East of meridian line
W = West of meridian line
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 36 |
| Value | Definition |
|---|---|
| 1 |
| Range of values | |
|---|---|
| Minimum: | 2088 |
| Maximum: | 728128 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 8 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 38 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 38 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 24 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 65 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 65 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 69 |
Blank
| Value | Definition |
|---|---|
| C | Copper River Meridian |
| F | Fairbanks Meridian |
| K | Kateel Meridian |
| S | Seward Meridian |
| U | Umiat Meridian |
Format of values is like MtttTrrrRss where
in place of M may be one of
M = Meridian
C = Copper River
F = Fairbanks
K = Kateel
S = Seward
U = Umiat
ttt = Township number (always zero filled)
in place of T,
N = North of baseline
S = South of baseline
rrr = Range number (always zero filled)
in place of R
E = East of meridian line
W = West of meridian line
ss = Section number
Sample: 000014014000000000014
U.S. Dept. of the Interior, Bureau of Land Management Alaska Department of Natural Resources
907/269-8833 (voice)
907/269-8920 (FAX)
GIS_Public_Access@dnr.state.ak.us
To provide consultants, planners, and resource managers with an indication of the type and number of claims or sites, whether state or federal, which are located in a particular area.
U.S. Dept. of the Interior, Bureau of Land Management, 20011004, Land Status: dnrdump Data Extraction & Manipulation, BLM, Anchorage, AK.
Alaska Department of Natural Resources, 20011009, General Land Status: akstatus Data Processing, ADNR, Anchorage, AK.
Alaska Department of Natural Resources, 20011009, General Land Status: akstatus Data set creation, ADNR, Anchorage, AK.
A routine has been established and refined over time to extract selected data and output it in a predefined format. The resulting flat file, which contains 1 record per transaction, is compressed.
The program run by BLM to extract lands status data for DNR is known as DNRDUMP. BLM's Division of Support Services, Branch of Information Technology Services, Application Services Section ( AK954), processes the data.
ADNR staff then ftp the compressed file to working space on their UNIX based network. The data is summarized by case to arrive at counts for the number of cases within each Meridian, Township, Range, Section MTRS. (Cases are state claims or sites and federal patented or selected claims.)
ADNR's data is extracted from the Land Administration System ( LAS) data warehouse to a flat file. Casetype, casestatus and land status is used to select and classify extracted data.
BLM and LAS data are processed by ADNR using SAS. Both BLM and DNR data are processed by MINFEFS.SAS. While distilling the BLM data to the section level some of the tables contained in BLMFMTS.SAS and LASFMTS.SAS are used.
The summary results create a dataset with one (1) observation per section. This dataset is related to the Section coverage in Arc/Info and used to reselect those sections containg any mining data. All attributes from the file are inserted into the coverage's polygon attribute table.
In Arc/Info (current version 7.1.1) the newly generated section level coverage is dissolved on all attributes in the coverage.
All codes are validated by the original records system. Codes are verified against an acceptable list during processing in SAS. After tabular data has been processed and converted for spatial use, maps are generated for visual comparison. These maps are compared with previous year's maps.
Accuracy is checked by visual review of hardcopy maps.
This data represents the number of claims located within a section. Please refer to the relevant plat and legal documents for more specific information about the type, status and specific location of claims or sites.
Polygon topology present.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- To ensure distribution of the most current public information, please refer requests for data or products to the Alaska Department of Natural Resources, Land Records Information Section.
- Use_Constraints:
- It is not recommended the data be used at a scale larger than 1:250,000.
Any hardcopies or published datasets utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way they are obligated to describe the types of modifications they have performed. User specifically agrees not to misrepresent these data sets, nor to imply that changes they made were approved by Alaska Department of Natural Resources.
907/269-8833 (voice)
907/269-8920 (FAX)
GIS_Public_Access@dnr.state.ak.us
The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any users purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof or otherwise, and in no event will the State of Alaska s liability to the requestor or anyone else exceed the fee paid for the electronic service or product.
| Data format: | ARC (version 7.1.1) Size: 23 for CD |
|---|---|
| Media you can order: |
CD-ROM
(format CD)
|
907/269-8855 (voice)
907/269-8920 (FAX)
michele_gorham@dnr.state.ak.us
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://tin.er.usgs.gov/metadata/akmineclaim.faq.html
Page Contact Information: Peter Schweitzer
Page Last Modified: Thursday, 18-Oct-2007 13:17:58 EDT
