read iowa state campus as EPT

gistfile1.txt

{
    "pipeline": [
        {
"bounds": "([-10425171.940, -10423171.940], [5164494.710, 5166494.710])",
"filename": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/IA_FullState/ept.json",
"type": "readers.ept",
"tag": "readdata"
        },
        {
            "limits": "Classification![7:7]",
            "type": "filters.range",
            "tag": "nonoise"
        },
        {
            "assignment": "Classification[:]=0",
            "tag": "wipeclasses",
            "type": "filters.assign"
        },
        {
            "out_srs": "EPSG:26915",
            "tag": "reprojectUTM",
            "type": "filters.reprojection"
        },
        {
            "tag": "groundify",
            "type": "filters.smrf"
        },
        {
            "limits": "Classification[2:2]",
            "type": "filters.range",
            "tag": "classify"
        },
        {
            "filename": "iowa.laz",
            "inputs": [ "classify" ],
            "tag": "writerslas",
            "type": "writers.las"
        },
        {
            "filename": "iowa.tif",
            "gdalopts": "tiled=yes,     compress=deflate",
            "inputs": [ "writerslas" ],
            "nodata": -9999,
            "output_type": "idw",
            "resolution": 1,
            "type": "writers.gdal",
            "window_size": 6
        }
    ]
}