topic Spatial Reference not set in Water Resources Questions https://community.esri.com/t5/water-resources-questions/spatial-reference-not-set/m-p/264593#M1178 <HTML><HEAD></HEAD><BODY><SPAN>Hello</SPAN><BR /><SPAN>I am using ArcGIS10 with HEC Geo-HMS for input into GEO-RAS. Everything has gone well until I get to Longest Flow Path under Characteristics. I am getting the message ???The Spatial Reference is not set for the inputs.??? My DEM is from LiDAR, UTM zone 15N NAD 83, as is my view and the other two inputs, flow direction grid and subbasin.&nbsp; Any advice is greatly appreciated.</SPAN><BR /><SPAN>J</SPAN></BODY></HTML> Tue, 03 Jul 2012 16:17:36 GMT jjereczek 2012-07-03T16:17:36Z Spatial Reference not set https://community.esri.com/t5/water-resources-questions/spatial-reference-not-set/m-p/264593#M1178 <HTML><HEAD></HEAD><BODY><SPAN>Hello</SPAN><BR /><SPAN>I am using ArcGIS10 with HEC Geo-HMS for input into GEO-RAS. Everything has gone well until I get to Longest Flow Path under Characteristics. I am getting the message ???The Spatial Reference is not set for the inputs.??? My DEM is from LiDAR, UTM zone 15N NAD 83, as is my view and the other two inputs, flow direction grid and subbasin.&nbsp; Any advice is greatly appreciated.</SPAN><BR /><SPAN>J</SPAN></BODY></HTML> Tue, 03 Jul 2012 16:17:36 GMT https://community.esri.com/t5/water-resources-questions/spatial-reference-not-set/m-p/264593#M1178 jjereczek 2012-07-03T16:17:36Z Re: Spatial Reference not set https://community.esri.com/t5/water-resources-questions/spatial-reference-not-set/m-p/264594#M1179 <HTML><HEAD></HEAD><BODY><SPAN>Hello Guys,</SPAN><BR /><SPAN>Even I am having the same problem. My sub basin, raw DEM and FDR are all in UTM 15 N.</SPAN><BR /><BR /><SPAN>Any suggestions???</SPAN><BR /><BR /><SPAN>Thanks</SPAN><BR /><BR /><SPAN>Ajay</SPAN></BODY></HTML> Wed, 17 Jul 2013 16:29:04 GMT https://community.esri.com/t5/water-resources-questions/spatial-reference-not-set/m-p/264594#M1179 AjayMore 2013-07-17T16:29:04Z