Presented during the 2022 North Dakota Geospatial Summit in Bismarck, ND, September 14-15.

1. USGS The National Map
Products and services
Elaine Guidero
North Dakota Geospatial Summit
9/14/2022

2. What is The National Map?
2

3. ▪ Elevation
▪ Hydrography
▪ Orthoimagery
▪ Geographic Names
▪ Boundaries
▪ Transportation
▪ Structures
▪ Land Cover
Data

4. ▪ 277,000 miles
of trails
Data: Trails

5. ▪ 3000 editors
▪ 520,000 points
▪ 750,000 edits
TNM Corps

6. Viewer https://apps.nationalmap.gov/viewer/

7. Downloader https://apps.nationalmap.gov/downloader/
7

8. Services
8

9. Training
9

10. ▪ BGN voted on 650
name changes last
week
▪ 5 names will be
changed in ND
GNIS place name changes

11. 11
▪ Digital 7.5’ topographic map (2009+)
▪ 3-year production cycle
▪ XML metadata with every map
▪ Can be read on-screen or printed
US Topo
nationalmap.gov/ustopo

12. How to access US Topo maps
USGS Store
store.usgs.gov
TNM Downloader
apps.nationalmap.gov/downloader

13. Historical Topo maps

14. How to access historic topo maps
TopoView
ngmdb.usgs.gov/topoview/

15. topoBuilder
topobuilder.nationalmap.gov
▪ Maps made on demand
▪ Currently 7.5-minute maps, other
sizes/scales coming soon
▪ Latest available data
▪ Choose your layers, format, and
contour smoothness

16. topoBuilder

17. topoBuilder

18. topoBuilder

19. topoBuilder

20. topoBuilder

21. topoBuilder

23. US Topo 1:100,000 metric maps

24. Getting from 24K to 100K

25. Structures

26. Hydrography

27. Hydrography

28. Transportation

29. Contours

30. Woodland

31. Topo data
through time

32. 3DEP
1 meter
resolution
10 meter
resolution
30 meter
resolution
Bare earth DEM
Lidar point cloud
(colorized by aerial
photo)
Lidar profile

33. 3DEP

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Elevation Viewer
apps.nationalmap.gov/3depdem
3DEP services
LidarExplorer
www.usgs.gov/nationalmap/lidar
explorer

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36. ND Dept of Water Resources, Sept 2022
USGS 3DEP, Sept 2021

38. NHD and WBD
WBD
NHD
National drainage network, 24K scale Nested hydrologic units in 8 levels

39. From NHD to 3DHP
PAST:
NHD
Medium
Resolution
PRESENT:
NHD High
Resolution
FUTURE:
Hydrography
Derived from
Lidar
Elevation
source
30 meter 10 meter 1 meter
(5 meter in AK)
Hydrography
source
1:100,000-
scale NHD
1:24,000-scale
or better NHD
1:5,000-scale
or better
derived from
lidar
Number of
flowline
features
nationally
2.7 million 26 million 200-300
million

40. 3DNTM: integrating elevation and hydrography
Underpins flood risk management, hazards response and mitigation,
infrastructure management, climate change science

41. National Hydrography Infrastructure

42. Other fun stuff

43. 43
Elaine Guidero
eguidero@usgs.gov
720-768-9610
Need help? Want to learn more?
▪ TNM Help Desk
tnm_help@usgs.gov
▪ TNM User Engagement Office
usgs.gov/TNMLiaisons