# Neff, B.P., and Rosenberry, D.O., 2018, Groundwater Connectivity of 
# Upland-Embedded Wetlands in the Prairie Pothole Region: 
# Wetlands: v. 38, no. 1, p. 51-63
# https://doi.org/10.1007/s13157-017-0956-7

# Neff, B.P., 2017, VS2DI model used to evaluate groundwater connectivity  
# of wetlands in the Prairie Pothole Region, North Dakota: U.S. Geological 
# Survey data release, https://doi.org/10.5066/F7K936FF

# EPSG 4326
# European Petroleum Survey Group (EPSG) spatial reference code:  
# world geodetic system 1984 WGS84

upper_left  -99.751062, 47.672882
upper_right -98.478063, 47.672882
lower_left  -99.751062, 46.746983
lower_right -98.478063, 46.746983