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Bench Mark Sheet for 9087031, Holland MI

Superseded Epoch

Large map location marker Station Location
Small red map location marker Published bench mark
Small blue map location marker Unpublished bench mark

Bench mark positions only appear on the map if their coordinates in the CO-OPS database are at the precision of degrees/minutes/seconds/and tenths of seconds. If the coordinates are less precise, the mark will not appear.

Printable version

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


TO REACH THE NOS GAUGE HOUSE IN HOLLAND, OTTAWA COUNTY, MICHIGAN, FROM THE
INTERSECTION OF BUSINESS 31 AND 32ND ST, PROCEED NNW ON 32ND ST FOR APPROX 9.3
KM (5.75 MI) TO THE INTERSECTION WITH SOUTH SHORE DRIVE, THEN PROCEED WSW ON
SHORE DRIVE FOR APPROX 0.16 KM (0.10 MI) TO THE MARINA AREA OF THE ELDEAN
SHIPYARD BOAT SLIPS AND THE NOS GAUGE HOUSE. NOTE: FOR NEW HOLLAND STATION,
PROCEED ON SHORE DRIVE INTO S.W. OTTAWA BEACH RD UNTIL IT DEAD ENDS INTO HOLLAND
STATE PARK WHERE THE NEW STATION IS ON THE BULKHEAD AT THE WATERS EDGE.


                    G R E A T  L A K E S   B E N C H   M A R K S


                 PRIMARY BENCH MARK STAMPING:  908 7031 K 2010
                         DESIGNATION:          908 7031 K

MONUMENTATION:           Metal Rod                             VM#:        19638
AGENCY:                  National Geodetic Survey              IDB PID#:        
SETTING CLASSIFICATION:                                        OPUS PID:        
LATITUDE:   42° 46.4' N (  42.77300)          LONGITUDE:  86° 12.4' W ( -86.20706)


The bench mark is a metal rod 34.73 m (113.9 ft) SE from the SE corner of the
S-most DNR guard shack, 29.93 m (98.2 ft) N of the edge of the channels
bulkhead, 18.04 m (59.2 ft) S from the centerline of Ottawa Beach road, set
flush with a paved sidewalk, driven 65.7 m (215.6 ft) in the ground.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  W 319
                         DESIGNATION:          W 319

MONUMENTATION:           Flange-encased Rod                    VM#:        13193
AGENCY:                  National Geodetic Survey              IDB PID#:  NG0413
SETTING CLASSIFICATION:  Stainless steel rod in sleeve         OPUS PID:        
LATITUDE:   42° 46.1' N (  42.76833)          LONGITUDE:  86° 12.0' W ( -86.20053)


The bench mark is a stainless steel rod 21.85m (71.69 ft) NW of the centerline
of South Shore Drive, 6.80m (22.31 ft) W of the SW Eldean Seaport Store at 2223
S Shore drive, and 5.39m (17.68 ft) SSW of a flag pole.  At the E edge of the
Pipers Restaurant wall, behind and slightly underneath the AC unit.  Note - AC
unit must be edged sideways and a short rod must be used to level to because of
roof overhang.



                         BENCH MARK STAMPING:  LAMP
                         DESIGNATION:          908 7031 LAMP

MONUMENTATION:           Metal Rod                             VM#:        13194
AGENCY:                  National Geodetic Survey              IDB PID#:  NG0412
SETTING CLASSIFICATION:  Copper-clad steel rod                 OPUS PID:        
LATITUDE:   42° 46.1' N (  42.76833)          LONGITUDE:  86° 12.0' W ( -86.19956)


The bench mark is a copper-clad steel rod 60.96m (200.00 ft) ESE and across S
Shore Drive from the Eldean Seaport Store, 23.95m (78.58 ft) SE of the
centerline of S Shore Drive, 0.88m (2.89 ft) SE of the E-most one of two
decorative lamps at the base of the concrete steps, 0.30m (0.98 ft) NW of a
concrete retaining wall which projects 0.46m (1.51 ft) , 0.24m (0.79 ft) NE of
the E edge of the steps.  Mark is 0.30m (0.98 ft) below the ground, being the
highest point on tip of a 5/8 inch diameter copper clad steel rod, with an
aluminum access cover stamped "LAMP" and 5-inch PVC pipe and surrounded by
concrete flush with the ground, marked with witness post.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  7031 D 1977
                         DESIGNATION:          908 7031 D

MONUMENTATION:           Survey disk                           VM#:        13195
AGENCY:                  National Ocean Survey                 IDB PID#:  NG0411
SETTING CLASSIFICATION:  6X6 Boat Hoist Foundation             OPUS PID:        
LATITUDE:   42° 46.2' N (  42.77061)          LONGITUDE:  86° 11.9' W ( -86.19883)


The bench mark is a disk set in the top of the NW corner of a 1.8m by a 1.8 m
(5.9 ft) concrete foundation, projecting about 0.3 m (1.0 ft) above the ground
which formerly supported a boat hoist, 28.65m (94.00 ft) NE of the NE corner of
the restaurant and bar building, 22.06m (72.38 ft) NE of the NE corner of
building, 20.96m (68.77 ft) ENE of the flag pole mast in the middle of the
sidewalk behind the building, 2.86m (9.38 ft) ENE of the most E sidewalk lamp,
1.62m (5.31 ft) W of edge of concrete bulkhead, 1.61 m (5.28 ft) W of the NE
corner of the hoist foundation, 0.36m (1.18 ft) S of edge of bulkhead, and 0.22m
(0.72 ft) E of the NW corner of the hoist foundation, being a standard NOS disk
stamped 7031 D 1977, set into the concrete foundation.



                         BENCH MARK STAMPING:  7031 F 1980
                         DESIGNATION:          908 7031 F

MONUMENTATION:           Survey disk                           VM#:        13196
AGENCY:                  National Ocean Survey                 IDB PID#:  NG0410
SETTING CLASSIFICATION:  Wingwall of small bridge              OPUS PID:        
LATITUDE:   42° 46.2' N (  42.76961)          LONGITUDE:  86° 11.8' W ( -86.19706)


The bench mark is a disk at a concrete bridge on S Shore Drive, about 60.96m
(200.00 ft) E of the entrance to the M.B.Y.C. Private Club, 5.66m (18.57 ft) N
of the center of S Shore Drive, 4.17m (13.68 ft) SE of a telephone and power
pole numbered 2127, and 0.15m (0.49 ft) S of the N end of the W wing wall.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  7031 H 1988
                         DESIGNATION:          908 7031 H

MONUMENTATION:           Survey disk                           VM#:        13197
AGENCY:                  National Ocean Service (NOS)          IDB PID#:  AC8296
SETTING CLASSIFICATION:  Concrete bulkhead                     OPUS PID:        
LATITUDE:   42° 46.1' N (  42.76789)          LONGITUDE:  86° 12.1' W ( -86.20117)


The bench mark is a disk 9.8m (32.2 ft) NW of centerline of S Shore Drive, 6.0m
(19.7 ft) WSW of W side of pier leading to water level gauge house, 0.15 meter
(0.49 ft) SSE of the N face of bulkhead, set flush in top of bulkhead, approx
0.15m (0.49 ft) above ground.



                         BENCH MARK STAMPING:  7031 C 1977
                         DESIGNATION:          908 7031 C

MONUMENTATION:           Survey disk                           VM#:        13198
AGENCY:                  National Ocean Survey                 IDB PID#:  NG0414
SETTING CLASSIFICATION:  Retaining wall of dock                OPUS PID:        
LATITUDE:   42° 46.1' N (  42.76872)          LONGITUDE:  86° 12.0' W ( -86.20053)


The bench mark is a disk set in top of the concrete retaining wall of the dock
behind the store, 22.67m (74.38 ft) NE of the N-most corner of the store, 11.76m
(38.58 ft) N of the NE corner of the store, 0.24m (0.79 ft) S of the N face of
the dock, and 0.15m (0.49 ft) below the concrete sidewalk.  Concrete deck was
re-surfaced in the past and a circular cut left in new surface allowing tight
access to the disk.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  7031 J 1997
                         DESIGNATION:          908 7031 J

MONUMENTATION:           Metal Rod                             VM#:        18300
AGENCY:                  National Ocean Service (NOS)          IDB PID#:  AH5303
SETTING CLASSIFICATION:  Stainless steel rod in sleeve         OPUS PID:        
LATITUDE:   42° 45.7' N (  42.76144)          LONGITUDE:  86° 11.7' W ( -86.19514)


The bench mark is a stainless steel rod across the avenue from the residence at
6591 147th Avenue, 96.4m (316.3 ft) ESE of the intersection of 66th Street and
147th Avenue, 48.8m (160.1 ft) SE and across avenue from the NW corner of house
number 6591, 45.4m (148.9 ft) W of a small group of 10 maples 3-5 inch in
diameter, 35.8m (117.5 ft) SE and across the avenue from the NE corner of the
house, 19.5m (64.0 ft) E of a nail and washer in a lone 10 inch pine tree, 8.8m
(28.9 ft) S of the centerline of 147th Avenue, 1.5m (4.9 ft) N of the N edge of
a field, near the S side of a small ditch which is on the S side of the avenue,
being a 3-d mark driven 9.1m (29.9 ft) to refusal, encased in a 5-inch PVC pipe
and aluminum access cover stamped "7031 J 1997" surrounded by concrete and flush
with the ground, marked by witness post.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  FARM 1991
                         DESIGNATION:          FARM

MONUMENTATION:           Survey disk                           VM#:        18301
AGENCY:                  National Ocean Service (NOS)          IDB PID#:  NG0799
SETTING CLASSIFICATION:  Top of metal pipe                     OPUS PID:        
LATITUDE:   42° 45.6' N (  42.75922)          LONGITUDE:  86° 11.8' W ( -86.19614)


The bench mark is a disk 16.04m (52.62 ft) S of the approx centerline of a short
dirt road leading to the field, 11.92m (39.11 ft) N of an unmarked power pole
(old number 33) , 9.47m (31.07 ft) E of the center of 66th St, 6.14m (20.14 ft)
W of the approx W dirt edge of the field, stamped "Farm 1991", attached to a 1.2
m (3.9 ft) aluminum rod, imbedded in a mass of concrete set flush with the
ground, marked with standard witness post.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  7 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  COE SARAH 1989
                         DESIGNATION:          SARAH

MONUMENTATION:           Survey disk                           VM#:        18528
AGENCY:                  Army Corp of Engineers                IDB PID#:        
SETTING CLASSIFICATION:  Concrete Bulkhead                     OPUS PID:        
LATITUDE:   42° 46.3' N (  42.77233)          LONGITUDE:  86° 12.5' W ( -86.20764)


The bench mark is a disk set on top of the S channel sea wall, near the E end on
the S entrance of the Macatawa Bay, 76.2 m (250.0 ft) W of the E end of the
concrete bulkhead, 17.29m (56.73 ft) W of the third ladder W of the E end of
concrete bulkhead, 14.52m (47.64 ft) NNW of the NW corner of house number 2419,
14.26m (46.78 ft) E of the fourth ladder from the E end of the concrete
bulkhead, 0.47m (1.54 ft) above the ground set in the center of the concrete
bulkhead.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  8 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  COE CRIB 1965
                         DESIGNATION:          CRIB

MONUMENTATION:           Survey disk                           VM#:        18530
AGENCY:                  US Army Corp of Engineers             IDB PID#:        
SETTING CLASSIFICATION:  Concrete Bulkhead                     OPUS PID:        
LATITUDE:   42° 46.4' N (  42.77328)          LONGITUDE:  86° 12.8' W ( -86.21256)


The bench mark is a disk in the S side of the N concrete bulkhead to the
entrance of the Macatawa Bay, 11.72m (38.45 ft) E of the W end of concrete
bulkhead, 1.05m (3.44 ft) N of the S face of the concrete bulkhead, 0.61m (2.00
ft) S of the face of the raised inner section of concrete retaining wall, and is
set flush with the concrete.



                         BENCH MARK STAMPING:  HOLLAND 2009
                         DESIGNATION:          908 7031 HOLLAND

MONUMENTATION:           Bench Mark disk                       VM#:        19636
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete tower base                   OPUS PID:        
LATITUDE:   42° 46.4' N (  42.77333)          LONGITUDE:  86° 12.8' W ( -86.21278)


The bench mark is a disk set in the S side of the N concrete bulkhead to the
entrance of the Macatawa Bay, 4.3 m (14.1 ft) W of the E edge of concrete cell,
0.8 m (2.6 ft) S of the N edge of gauge house, 0.1 m (0.3 ft) of aluminum Rohn
tower with met sensors, bench mark is set flush with concrete.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  9 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  908 7031 L 2010
                         DESIGNATION:          908 7031 L

MONUMENTATION:           Bench Mark disk                       VM#:        19637
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete footer                       OPUS PID:        
LATITUDE:   42° 46.5' N (  42.77511)          LONGITUDE:  86° 12.6' W ( -86.21022)


The bench mark is a disk set in concrete at the Holland State Park shelter in
the Ottawa Beach parking area, 10.67 m (35.0 ft) E of the W corner of a brick
shelter, 6.95 m (22.8 ft) W of the E of the concrete pad, 3.22 m (10.6 ft) N of
the S edge of the concrete pad, set flush with concrete.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page 10 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                    G R E A T  L A K E S   B E N C H   M A R K S


                         BENCH MARK STAMPING:  BOUNDARY 2009 HOLLAND
                         DESIGNATION:          BOUNDARY

MONUMENTATION:           Bench Mark disk                       VM#:        19639
AGENCY:                  United States Army Corps of Engineers IDB PID#:        
SETTING CLASSIFICATION:  Concrete pad                          OPUS PID:        
LATITUDE:   42° 46.4' N (  42.77333)          LONGITUDE:  86° 12.8' W ( -86.21272)


The bench mark is a disk set in the S side of the N concrete bulkhead to the
entrance of the Macatawa Bay, bench mark is 4.31 m (14.1 ft) N of a USCG NAVAID
channel marker, 3.89 m (12.8 ft) ENE of the corner of gauge house, 0.5 m (1.6
ft) W of the E edge of concrete cell, set flush with the concrete.



                         BENCH MARK STAMPING:  COE 28 1989
                         DESIGNATION:          28

MONUMENTATION:           Bench Mark disk                       VM#:        19640
AGENCY:                  United States Army Corps of Engineers IDB PID#:        
SETTING CLASSIFICATION:  Breakwall                             OPUS PID:        
LATITUDE:   42° 46.4' N (  42.77403)          LONGITUDE:  86° 12.8' W ( -86.21325)


The bench mark is a disk on the finger pier leading to a green NAVAID, 4.1 m
(13.5 ft) S of the N edge of concrete finger pier, 2.7 m (8.9 ft) W of the E
edge of the concrete finger pier, 0.9 m (3.0 ft) N of the blue railing running
N-S along a concrete finger pier, set flush with concrete.





Foot Notes:

Above marks are published for informational purposes only.  Long term stability
has not been reviewed prior to publication.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page 11 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                             D E F I N I T I O N S


The International Great Lakes Datum (IGLD) is the vertical height reference
datum used in the Great Lakes/St. Lawrence River System for engineering,
charting, channel dredging, navigation safety, power generation, and water 
resource management. It is a coordinated datum between the United States and
Canada that ensures both countries are using the same reference for projects
in the Great Lakes basin. The datum origin, or zero, is defined as Mean Sea 
Level at Pointe-au-Pere /Rimouski, Quebec, Canada at the mouth of the 
St. Lawrence River. IGLD requires updating approximately every 25-30 years 
to account for varying changes in the land surface elevations following the 
retreat of the glaciers during the last ice age, referred to as Glacial 
Isostatic Adjustment (GIA). The current IGLD 1985 was implemented in 1992.

IGLD 1985 uses dynamic heights as the vertical reference standard and lakes
station water level elevations are adjusted to provide a level geopotential
plane for lake level reference.

Dynamic height is the potential difference along the plumbline between the 
vertical datum and a point of interest divided by a constant value of 
gravity. In Canada and USA, the constant value of gravity is the 
"normal gravity" on the ellipsoid at latitude 45 (9.806199 ms-2). Dynamic 
heights have no geometric meaning. They are mainly used for the management 
of water in large lakes, rivers and channels. The surface of a lake has a 
constant dynamic height if undisturbed by currents, winds, atmospheric 
pressure, etc.

The Hydraulic Corrector (HC) is the difference in the long term water level 
mean between Subordinate and Master station. The difference (HC) is 
subtracted algebraically at the subordinate gauge referencing the same 
elevation as the master station. Thus all water levels on a given lake can 
be referenced to the same lakes LWD/Chart Datum reference elevation.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page 12 of 12

                                                                                
Station ID: 9087031                         PUBLICATION DATE:  08/11/2017
Name:       HOLLAND, LAKE MICHIGAN                            
            MI
NOAA Chart: 14932                           Latitude:   42° 46.4' N (  42.77333)
USGS Quad:                                  Longitude:  86° 12.8' W ( -86.21278)


                             D E F I N I T I O N S


A Master Stations is the control point for determining water level 
elevations on a particular lake of the Great Lakes.   Since water surfaces
of the Great Lakes are considered to be at geopotential equal, all Mean 
Water Level (MWL) values for stations on a particular lake should have the 
same dynamic height.  Therefore, all subordinate water level station MWL 
values are adjusted to match the dynamic water level elevation of the Master
Station through the use of a hydraulic corrector.  In the establishment of 
International Great Lakes Datum (1985) the connecting waterways station 
dynamic elevations were calculated through the use of a linear regression 
while constraining the end points of the regression with the dynamic 
elevations of the corresponding master station above and below the 
connecting channel.

NAVD88 is a fixed datum derived from a simultaneous, least squares, minimum
constraint adjustment of Canadian/Mexican/United States leveling 
observations.  Local mean sea level observed at Father Point/Rimouski,
Canada was held fixed as the single initial constraint.  NAVD88 replaces 
NGVD29 as the national standard geodetic reference for heights.  Bench mark 
elevations relative toNAVD88 are available from NGS through the World Wide 
Web at National Geodetic Survey.

The Vertical Mark Number (VM#) and PID# shown on the bench mark sheet are unique
identifiers for bench marks in the tidal and geodetic databases, respectively.
Each bench mark in either database has a single, unique VM# and/or PID# assigned.
Where both VM# and PID# are indicated, both tidal and geodetic elevations are
available for the bench mark listed. The NGS's Integrated Data Base (IDB PID)
provides geodetic datum based on traditionally leveled and bluebooked ties to
the National Spatial Reference System(NSRS) https://www.ngs.noaa.gov/datasheets/.
The NGS Online Positioning User Service (OPUS PID) provides geodetic datum based
on GPS position & tie it to the NSRS https://www.ngs.noaa.gov/OPUS/.


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Products available at 9087031 Holland, MI

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services