LOCATIONS
nc_spm main data set in State Plane meters (EPSG 3358)
nc_ll geographic coordinates (for data downloaded from USGS and other sources) (EPSG4326)
nc_spf State Plane feet (for data downloaded from Wake county GIS, NC Flood program)
my_xy non-georeferenced

MAPSETS
nc_spm/PERMANENT baseline data
nc_spm/user1 data created when working with the book (remove from the distro version)
nc_spm/user2 testing debuggiing and evelopment with the data set (remove)

Name conventions
NO dots or special symbols
Only letters, numbers and underscore _
feature
feature_source_resolution (source can mean year, tile, etc)

EPSG codes for NC
# NAD83 / North Carolina (ftUS)
<2264> +proj=lcc +lat_1=36.16666666666666 +lat_2=34.33333333333334 +lat_0=33.75 +lon_0=-79 +x_0=609601.2192024384 +y_0=0 +ellps=GRS80 +datum=NAD83 +to_meter=0.3048006096012192 +no_defs  <>

# NAD83(HARN) / North Carolina
<3358> +proj=lcc +lat_1=36.16666666666666 +lat_2=34.33333333333334 +lat_0=33.75 +lon_0=-79 +x_0=609601.22 +y_0=0 +ellps=GRS80 +units=m +no_defs  <>

# NAD83(HARN) / North Carolina (ftUS) (deprecated)
<3359> +proj=lcc +lat_1=36.16666666666666 +lat_2=34.33333333333334 +lat_0=33.75 +lon_0=-79 +x_0=609601.2192024385 +y_0=0 +ellps=GRS80 +to_meter=0.3048 +no_defs  <>

# NAD83(HARN) / North Carolina (ftUS)
<3404> +proj=lcc +lat_1=36.16666666666666 +lat_2=34.33333333333334 +lat_0=33.75 +lon_0=-79 +x_0=609601.2192024384 +y_0=0 +ellps=GRS80 +to_meter=0.3048006096012192 +no_defs  <>

# NAD27 / North Carolina
<32019> +proj=lcc +lat_1=34.33333333333334 +lat_2=36.16666666666666 +lat_0=33.75 +lon_0=-79 +x_0=609601.2192024384 +y_0=0 +ellps=clrk66 +datum=NAD27 +to_meter=0.3048006096012192 +no_defs  <>

# NAD83 / North Carolina
<32119> +proj=lcc +lat_1=36.16666666666666 +lat_2=34.33333333333334 +lat_0=33.75 +lon_0=-79 +x_0=609601.22 +y_0=0 +ellps=GRS80 +datum=NAD83 +units=m +no_defs  <>

# NAD83(CSRS) / UTM zone 17N
<2958> +proj=utm +zone=17 +ellps=GRS80 +units=m +no_defs  <>

# NAD83(CSRS) / UTM zone 18N
<2959> +proj=utm +zone=18 +ellps=GRS80 +units=m +no_defs  <>

# NAD83(CSRS) / UTM zone 19N
<2960> +proj=utm +zone=19 +ellps=GRS80 +units=m +no_defs  <>

# WGS 84
<4326> +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs  <>
# NAD83(HARN)
<4152> +proj=longlat +ellps=GRS80 +no_defs  <>