NAD 1983 (2011) StatePlane Montana FIPS 2500 (Meters) - EPSG:6514

WKT

PROJCS["NAD_1983_2011_StatePlane_Montana_FIPS_2500", 
	GEOGCS["GCS_NAD_1983_2011", 
		DATUM["D_NAD_1983_2011", 
			SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Lambert_Conformal_Conic"], 
	PARAMETER["False_Easting", 600000.0], 
	PARAMETER["False_Northing", 0.0], 
	PARAMETER["Central_Meridian", -109.5], 
	PARAMETER["Standard_Parallel_1", 45.0], 
	PARAMETER["Standard_Parallel_2", 49.0], 
	PARAMETER["Latitude_Of_Origin", 44.25], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["NAD_1983_2011_StatePlane_Montana_FIPS_2500", 
	BASEGEOGCRS["GCS_NAD_1983_2011", 
		DYNAMIC[
			FRAMEEPOCH[2010.0], 
			MODEL["HTDP"]], 
		DATUM["D_NAD_1983_2011", 
			ELLIPSOID["GRS_1980", 6378137.0, 298.257222101], 
			ANCHOREPOCH[2010.0]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	CONVERSION["Lambert_Conformal_Conic", 
		METHOD["Lambert_Conformal_Conic"], 
		PARAMETER["False_Easting", 600000.0], 
		PARAMETER["False_Northing", 0.0], 
		PARAMETER["Central_Meridian", -109.5], 
		PARAMETER["Standard_Parallel_1", 45.0], 
		PARAMETER["Standard_Parallel_2", 49.0], 
		PARAMETER["Latitude_Of_Origin", 44.25]], 
	CS[Cartesian, 2], 
	AXIS["Easting (X)", east, 
		ORDER[1]], 
	AXIS["Northing (Y)", north, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "6514"]]

Data from @esri/proj-codes

{
  "wkid": 6514,
  "latestWkid": 6514,
  "gcsWkid": 6318,
  "macro": "PE_PCS_NAD_1983_2011_MT",
  "name": "NAD_1983_2011_StatePlane_Montana_FIPS_2500",
  "wkt": "PROJCS[\"NAD_1983_2011_StatePlane_Montana_FIPS_2500\",GEOGCS[\"GCS_NAD_1983_2011\",DATUM[\"D_NAD_1983_2011\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Lambert_Conformal_Conic\"],PARAMETER[\"False_Easting\",600000.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",-109.5],PARAMETER[\"Standard_Parallel_1\",45.0],PARAMETER[\"Standard_Parallel_2\",49.0],PARAMETER[\"Latitude_Of_Origin\",44.25],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"NAD_1983_2011_StatePlane_Montana_FIPS_2500\",BASEGEOGCRS[\"GCS_NAD_1983_2011\",DYNAMIC[FRAMEEPOCH[2010.0],MODEL[\"HTDP\"]],DATUM[\"D_NAD_1983_2011\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101],ANCHOREPOCH[2010.0]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Lambert_Conformal_Conic\",METHOD[\"Lambert_Conformal_Conic\"],PARAMETER[\"False_Easting\",600000.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",-109.5],PARAMETER[\"Standard_Parallel_1\",45.0],PARAMETER[\"Standard_Parallel_2\",49.0],PARAMETER[\"Latitude_Of_Origin\",44.25]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"6514\"]]",
  "description": "NAD 1983 (2011) StatePlane Montana FIPS 2500 (Meters)",
  "authority": "EPSG",
  "version": "8.2.10(10.3.1)",
  "deprecated": "no",
  "areaname": "USA - Montana",
  "extent": {
    "slat": 44.35,
    "nlat": 49.01,
    "llon": -116.07,
    "rlon": -104.04
  }
}