MAGNA Mocoa Putumayo 2011 - EPSG:6259

WKT

PROJCS["MAGNA_Mocoa_Putumayo_2011", 
	GEOGCS["GCS_MAGNA", 
		DATUM["D_MAGNA", 
			SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["IGAC_Plano_Cartesiano"], 
	PARAMETER["False_Easting", 1047467.388], 
	PARAMETER["False_Northing", 617828.474], 
	PARAMETER["Longitude_Of_Center", -76.65102121944444], 
	PARAMETER["Latitude_Of_Center", 1.140023358333333], 
	PARAMETER["Height", 655.2], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["MAGNA_Mocoa_Putumayo_2011", 
	BASEGEOGCRS["GCS_MAGNA", 
		DATUM["D_MAGNA", 
			ELLIPSOID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	CONVERSION["IGAC_Plano_Cartesiano", 
		METHOD["IGAC_Plano_Cartesiano"], 
		PARAMETER["False_Easting", 1047467.388], 
		PARAMETER["False_Northing", 617828.474], 
		PARAMETER["Longitude_Of_Center", -76.65102121944444], 
		PARAMETER["Latitude_Of_Center", 1.140023358333333], 
		PARAMETER["Height", 655.2]], 
	CS[Cartesian, 2], 
	AXIS["Northing (Y)", north, 
		ORDER[1]], 
	AXIS["Easting (X)", east, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "6259"]]

Data from @esri/proj-codes

{
  "wkid": 6259,
  "latestWkid": 6259,
  "gcsWkid": 4686,
  "macro": "PE_PCS_MAGNA_MOCOA_2011",
  "name": "MAGNA_Mocoa_Putumayo_2011",
  "wkt": "PROJCS[\"MAGNA_Mocoa_Putumayo_2011\",GEOGCS[\"GCS_MAGNA\",DATUM[\"D_MAGNA\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"IGAC_Plano_Cartesiano\"],PARAMETER[\"False_Easting\",1047467.388],PARAMETER[\"False_Northing\",617828.474],PARAMETER[\"Longitude_Of_Center\",-76.65102121944444],PARAMETER[\"Latitude_Of_Center\",1.140023358333333],PARAMETER[\"Height\",655.2],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"MAGNA_Mocoa_Putumayo_2011\",BASEGEOGCRS[\"GCS_MAGNA\",DATUM[\"D_MAGNA\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"IGAC_Plano_Cartesiano\",METHOD[\"IGAC_Plano_Cartesiano\"],PARAMETER[\"False_Easting\",1047467.388],PARAMETER[\"False_Northing\",617828.474],PARAMETER[\"Longitude_Of_Center\",-76.65102121944444],PARAMETER[\"Latitude_Of_Center\",1.140023358333333],PARAMETER[\"Height\",655.2]],CS[Cartesian,2],AXIS[\"Northing (Y)\",north,ORDER[1]],AXIS[\"Easting (X)\",east,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"6259\"]]",
  "description": "MAGNA Mocoa Putumayo 2011",
  "authority": "EPSG",
  "version": "8.2.4(10.2.1)",
  "deprecated": "no",
  "areaname": "Colombia - Mocoa - Putumayo",
  "extent": {
    "slat": 0.6333333333333333,
    "nlat": 1.65,
    "llon": -77.16666666666667,
    "rlon": -76.15
  }
}