# Robertson,D.M., Juckem, P.F., Dantoin, E.D., Winslow, L.A., 2018, Effects of water level and climate on the hydrodynamics and water quality of Anvil Lake, Wisconsin, a shallow seepage lake, Lake and Reservoir Management, http://dx.doi.org/10.1080/10402381.2017.1412374.
#
# Juckem, P.F., Robertson,D.M., 2018, MODFLOW-NWT model data sets used to evaluate 
# changes in the hydrodynamics of Anvil Lake, Wisconsin: U.S. Geological Survey data release, 
# http://dx.doi.org/10.5066/F7F18WXW.
# 
# DATUM
# ["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]]
#
# Model extent as longitude, latitude (x,y) in decimal degrees
upper_left  -89.158505 46.058408 
upper_right -88.947049 46.058408
lower_right -88.947049 45.864197
lower_left  -89.158505 45.864197