Community Forums

Community Forums

Share:
Notifications
Clear all

USGS Horizontal and Vertical Control  

Page 1 / 2

John Hamilton
Posts: 2878
Member
(@john-hamilton)
2,500+ posts
Joined: 10 years ago

USGS did a lot of third order control mainly for quadrangle production. They created books of control (H and V separate, by the old 15' quads). The horizontal datum is NAD27, and the vertical datum is NGVD29. Very little of their data was included in the NGS readjustments that resulted in NAD83 and NAVD88. However, I believe their data has some usefulness, especially for projects that were tied to them (most of the USACE projects in my area used USGS control simply because USCGS/NGS control was too far away). 

Apparently Rolla is trying to get them all scanned...I have scanned copies (pdf) of the USGS horizontal and vertical control books (by 15' quadrangles) for the following states:

Kentucky

Maryland

New York

Ohio

Pennsylvania

West Virginia

I will try to put them online if anyone is interested...

 

Thanks to Jeff Jalbrzikowski, the new NGS advisor for the Great Lakes region (took over for Dave Conner).

7 Replies
2 Replies
jalbrz
Member
(@jalbrz)
Joined: 5 years ago

20+ posts
Posts: 33
Posted by: John Hamilton

Thanks to Jeff Jalbrzikowski, the new NGS advisor for the Great Lakes region (took over for Dave Conner).

Hey John, thanks for the shout out.  I'm assigned to the Appalachian Region, defined as KY, OH, PA, WV, and yes indeed Conner's replacement.

 

Posted by: Jim Jacaruso, PLS

Glad to hear good things about Jeff at NGS. He is a former colleague of mine.

Hey Jim, we're still colleagues man! Don't ever hesitate to reach out with any question(s) you think I might be able to assist with.  If I don't have the answer, I will help track down someone who does.

 

Posted by: Loyal

Are they doing this for ALL of the States?

The Rolla USGS Center only services what the USGS defines as the Eastern States, or "ND, SD, NE, KS, OK and all points east", so inquiries on the Western States would have to be directed to the Denver Office but I have never been in contact with anyone there.  The Rolla POC did indicate that only about half of the control files at that office have been scanned.  I have subsequently reached out to see if there is a list of which States' scans are completed.  Obviously all are free to do as they wish, but please don't overwhelm the gentleman with requests, he had mentioned that the staff shrunk from 5 people to 1 person a while back so I imagine all requests are FIFO.  When we communicated, it seemed safe to assume (but was NOT stated) that there were no plans by USGS to post the scans online, so my intent was to share with anyone whom I thought would also be willing to share.  John tends to have some interesting stuff on his site (although sometimes buried) and I know he is active online so he was my first go-to.  I have also shared with Zhanna at thesurveystation.com who will post online when time allows.

If anyone else is interested in hosting/posting these datasheets, feel free to message me a URL for your FTP/dropbox/wetransfer/drive/whatever, and I will upload for maximum distribution.  Altogether as one zip file, these weigh in at 1.15GB so not a huge transfer.

Also, want to point out again that the scans are organized by 15 minute quads, which may not be immediately apparent.

Reply
John Hamilton
Member
(@john-hamilton)
Joined: 10 years ago

2,500+ posts
Posts: 2878

I was all ready to upload to my web server, but that didn't work...found out they went out of business, sold all of the accounts to another company, who totally screwed up my site. So now I gotta work on getting that fixed...

Reply
Jim Jacaruso, PLS
Posts: 315
(@bushaxe)
250+ posts
Joined: 4 years ago
Posted by: John Hamilton

USGS did a lot of third order control mainly for quadrangle production. They created books of control (H and V separate, by the old 15' quads). The horizontal datum is NAD27, and the vertical datum is NGVD29. Very little of their data was included in the NGS readjustments that resulted in NAD83 and NAVD88. However, I believe their data has some usefulness, especially for projects that were tied to them (most of the USACE projects in my area used USGS control simply because USCGS/NGS control was too far away). 

Apparently Rolla is trying to get them all scanned...I have scanned copies (pdf) of the USGS horizontal and vertical control books (by 15' quadrangles) for the following states:

Kentucky

Maryland

New York

Ohio

Pennsylvania

West Virginia

I will try to put them online if anyone is interested...

 

Thanks to Jeff Jalbrzikowski, the new NGS advisor for the Great Lakes region (took over for Dave Conner).

Glad to hear good things about Jeff at NGS. He is a former colleague of mine.

Reply
Sergeant Schultz
Posts: 758
Member
(@sergeant-schultz)
500+ posts
Joined: 10 years ago

Very interested

Reply

Take the next step in your career, PPI will get you there

Loyal
Posts: 3444
Member
(@loyal)
2,500+ posts
Joined: 10 years ago

John,

Are they doing this for ALL of the States?

I have a few of the old 15' "paper" sets, but would LOVE to get complete digital sets of several Western States.

Loyal

Reply
Loyal
Posts: 3444
Member
(@loyal)
2,500+ posts
Joined: 10 years ago
Posted by: jalbrz
Posted by: John Hamilton

Thanks to Jeff Jalbrzikowski, the new NGS advisor for the Great Lakes region (took over for Dave Conner).

Hey John, thanks for the shout out.  I'm assigned to the Appalachian Region, defined as KY, OH, PA, WV, and yes indeed Conner's replacement.

 

Posted by: Jim Jacaruso, PLS

Glad to hear good things about Jeff at NGS. He is a former colleague of mine.

Hey Jim, we're still colleagues man! Don't ever hesitate to reach out with any question(s) you think I might be able to assist with.  If I don't have the answer, I will help track down someone who does.

 

Posted by: Loyal

Are they doing this for ALL of the States?

The Rolla USGS Center only services what the USGS defines as the Eastern States, or "ND, SD, NE, KS, OK and all points east", so inquiries on the Western States would have to be directed to the Denver Office but I have never been in contact with anyone there.  The Rolla POC did indicate that only about half of the control files at that office have been scanned.  I have subsequently reached out to see if there is a list of which States' scans are completed.  Obviously all are free to do as they wish, but please don't overwhelm the gentleman with requests, he had mentioned that the staff shrunk from 5 people to 1 person a while back so I imagine all requests are FIFO.  When we communicated, it seemed safe to assume (but was NOT stated) that there were no plans by USGS to post the scans online, so my intent was to share with anyone whom I thought would also be willing to share.  John tends to have some interesting stuff on his site (although sometimes buried) and I know he is active online so he was my first go-to.  I have also shared with Zhanna at thesurveystation.com who will post online when time allows.

If anyone else is interested in hosting/posting these datasheets, feel free to message me a URL for your FTP/dropbox/wetransfer/drive/whatever, and I will upload for maximum distribution.  Altogether as one zip file, these weigh in at 1.15GB so not a huge transfer.

Also, want to point out again that the scans are organized by 15 minute quads, which may not be immediately apparent.

Thanks for the info!

?

Reply
Page 1 / 2
Scroll to Top