%USGS SPCMSC mean beach slope derived from lidar surveys from 2011, dunes from 2011 in LMSL, ver 1.2 Compiled 6/12/17 
%iso_lon %iso_lat %sl_lon %sl_lat %slope %95_up %95_low  dhigh   dlow month year
291.808 44.3046 291.7989 44.3164 0.1474 0.1846 0.1103 4.5037 2.1450  1 2011
291.810 44.3042 291.7997 44.3170 0.1423 0.1781 0.1065 4.4393 2.2393  1 2011
291.813 44.3051 291.8016 44.3182 0.1394 0.1682 0.1106 4.2076 2.3174  1 2011
291.822 44.3211 291.8154 44.3286 0.0887 0.1030 0.0744 3.2936 2.0854  1 2011
291.822 44.3239 291.8171 44.3295 0.0664 0.0921 0.0406 4.4571 3.0408  1 2011
291.824 44.3251 291.8194 44.3299 0.0459 0.0628 0.0290 4.3982 3.2834  1 2011
291.941 44.3301 291.9445 44.3376 0.1029 0.2013 0.0044 4.7184 1.7387  1 2011
291.943 44.3299 291.9457 44.3377 0.1022 0.2286 0.0010 4.1924 1.7838  1 2011
291.944 44.3295 291.9474 44.3380 0.1501 0.2438 0.0564 4.6152 2.3427  1 2011
292.520 44.5455 292.5103 44.6092 0.0769 0.0872 0.0665 4.9026 2.9172  1 2011
292.528 44.5450 292.5182 44.6114 0.0969 0.0986 0.0952 4.9403 2.8095  1 2011
292.530 44.5450 292.5206 44.6109 0.1156 0.1260 0.1052 5.0955 3.0082  1 2011
292.533 44.5453 292.5229 44.6104 0.1115 0.1203 0.1027 4.5646 2.8172  1 2011