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North American Grid-Based Sampling Frame


Publication Date


Talbert, C., and Reichert, B., 2018, North American Grid-Based Sampling Frame: U.S. Geological Survey data release,


This sampling frame is a set of grid-based finite-area frames spanning Canada, the United States, and Mexico. The grid for the United States is broken into individual grids for the continental United States, Hawaii, and Puerto Rico. Alaska is combined with Canada into a single grid. Each country/state/territory extent consists of four nested sampling grids at 50x50km, 10x10km, 5x5km, and 1x1km resolutions. The original 10x10km continental United States grid was developed by the Forest Service, U.S. Department of Agriculture for use in the interagency “Bat Grid” monitoring program in the Pacific Northwest and was expanded across Canada, the United States, and Mexico for the North American Bat Monitoring Program (NABat). Additional grids [...]

Child Items (6)


Point of Contact :
Brian E Reichert
Originator :
Colin Talbert, Brian E Reichert
Metadata Contact :
Colin Talbert
Distributor :
U.S. Geological Survey - ScienceBase
Publisher :
U.S. Geological Survey
SDC Data Owner :
Fort Collins Science Center
USGS Mission Area :

Attached Files

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SamplingGridRelationships.png thumbnail 232.9 KB image/png


This grid-based sampling frame was created to formalize a sampling strategy for the North American Bat Monitoring Program (NABat). The 10x10km grid is being used for bat monitoring but an additional lower resolution grid (50x50km) and higher resolution grids (5x5km and 1x1km) grids were added so that the same sampling frame could be used for monitoring species or areas requiring finer or coarser resolutions.
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  • Fort Collins Science Center (FORT)
  • USGS Data Release Products



Additional Information


Type Scheme Key
DOI doi:10.5066/P9M00P17

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