The 3D Elevation Program national indexing scheme

Fact Sheet 2017-3073
By: , and 



The 3D Elevation Program (3DEP) of the U.S. Geological Survey (USGS) acquires high-resolution elevation data for the Nation. This program has been operating under an opportunity-oriented approach, acquiring light detection and ranging (lidar) projects of varying sizes scattered across the United States. As a result, the national 3DEP elevation layer is subject to data gaps or unnecessary overlap between adjacent collections. To mitigate this problem, 3DEP is adopting a strategic, systematic approach to national data acquisition that will create efficiencies in efforts to achieve nationwide elevation data coverage and help capture additional Federal and non-Federal investments resulting from advance awareness of proposed acquisitions and partnership opportunities. The 3DEP Working Group, an interagency group managed by the USGS, has agreed that all future 3DEP collections within the lower 48 States should be coordinated by using a 1-kilometer by 1-kilometer tiling scheme for the conterminous United States. Fiscal Year 2018 is being considered a transition year, and in Fiscal Year 2019 the national indexing scheme will be fully implemented, so that all 3DEP-supported projects will be acquired and delivered in the national indexing scheme and projected into the Albers Equal Area projection. 

Suggested Citation

Thatcher, C.A., Heidemann, H.K., Stoker, J.M., and Eldridge, D.F., 2017, The 3D Elevation Program national indexing scheme: U.S. Geological Survey Fact Sheet 2017-3073, 2 p.,

ISSN: 2327-6932 (online)

ISSN: 2327-6916 (print)

Publication type Report
Publication Subtype USGS Numbered Series
Title The 3D Elevation Program national indexing scheme
Series title Fact Sheet
Series number 2017-3073
DOI 10.3133/fs20173073
Year Published 2017
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Earth Resources Observation and Science (EROS) Center, National Geospatial Program
Description 2 p.
Online Only (Y/N) N
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
Additional publication details