Tags
Model, Breaklines, Elevation Data, Lidar, Langlade County, Wisconsin

Summary
This data, along with its derivatives, is the result of a countywide elevation mapping with cooperative partnerships from Langlade County, Wisconsin DOA, and the USGS 3DEP program. This data was produced from lidar data collected in April 2017, which was processed and delivered in 2018.

Description
The Langlade County lidar project area covers approximately 896 square miles which includes a 100 meter buffer around the county boundary. The lidar data was acquired at a nominal point spacing (NPS) of 0.7 meters and a single swath nominal point density (NPD) of 2.0. Project specifications are based on Langlade County requirements and on the U.S. Geological Survey National Geospatial Program LiDAR Base Specification, Version 1.2. The data was developed based on a horizontal projection/datum of NAD83(2011) / Langlade County (ftUS) (EPSG Code: 7616), and vertical datum of NAVD88 - Geoid12B (Feet). LiDAR data was acquired using the Leica ALS70 SN7161 and 7178 Sensors from April 16, 2017 through April 29, 2017 in nine total lifts. Acquisition occurred with leaves absent from deciduous trees, when no snow was present on the ground, and with rivers at or below normal levels.

Use limitations
None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data.

Other uses and Info
The Tile Index is an indentification layer.  Each of the tiles is 4500 ft x 4500 ft.
If data is needed for a project, the location is critical as the data itself exceeds 1 TB and is closer to 2 TB for every layer for the entire county.