GeoTiles

Map - Town index - Tile index

Relevant towns and neighbourhoods

Heel (woonkern)Linne (woonkern)Maasbracht (woonkern)Merum (woonkern)Beegden (woonkern)Brachterbeek (woonkern)Weerd (buurtschap)Ool (woonkern)Osen (gehucht)Pol (gehucht)Herten (woonkern)

Tile 58DZ1

Actueel Hoogtebestand Nederland

Point cloud

The aerial photograph closest to the acquisition date of the AHN iteration was overlaid on the point cloud to produce a colored version for visualisation purposes. Furthermore, for each point cloud a spatial index and textual summary, including elevation histogram, are provided. Please note that the images are not from the same flight, and may be years off. Therefore, small alignment errors and differences occur between them.

Zoom in on the map to see tiled versions (25 tiles of 1×1.25 km). Tiled versions typically fit into memory (RAM) are easier to handle and are especially suitable for parallel processing and Machine Learning.

Version Point cloud Spatial index Info License
AHN1 Ground 58dz1.laz 18.9 MiB 58dz1.lax 37 kiB 58dz1.txt 15 kiB Stuurgroep AHN, public domain
Non-ground 58dz1.laz 1.8 MiB 58dz1.lax 90 kiB 58dz1.txt 33 kiB Stuurgroep AHN, public domain
Merged 58DZ1.LAZ 20.7 MiB 58DZ1.LAX 43 kiB 58DZ1.txt 34 kiB Stuurgroep AHN (merged product by GeoTiles)
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN2 Ground g58dz1.laz 312.7 MiB g58dz1.lax 478 kiB g58dz1.txt 15 kiB Stuurgroep AHN, public domain
Non-ground u58dz1.laz 492.1 MiB u58dz1.lax 422 kiB u58dz1.txt 47 kiB Stuurgroep AHN, public domain
Merged 58DZ1.LAZ 804.8 MiB 58DZ1.LAX 1.7 MiB 58DZ1.txt 47 kiB Stuurgroep AHN (merged product by GeoTiles)
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN3 Original C_58DZ1.LAZ 2.3 GiB C_58DZ1.LAX 1.7 MiB C_58DZ1.txt 46 kiB Stuurgroep AHN, public domain
Colored Available for sub-units only, zoom in to select. Remixed by GeoTiles*
AHN4 Original C_58DZ1.LAZ 5.3 GiB C_58DZ1.LAX 1.7 MiB C_58DZ1.txt 48 kiB Het Waterschapshuis, public domain
Colored (Partially) available for sub-units. Remixed by GeoTiles*
Yearly3 2021 C_MAAS2021_58DZ1.LAZ 4.1 GiB C_MAAS2021_58DZ1.LAX 1.6 MiB C_MAAS2021_58DZ1.txt 49 kiB See source (Rijkswaterstaat)

*The point cloud is in the public domain and the aerial photograph available under CC-BY. However, the colored point cloud is a new product created by GeoTiles.

3Partial coverage only.

File checksums (md5) are available for AHN1, AHN2, AHN3 and AHN4.

Raster

Version DSM DTM ('maaiveld') License
5 meter ½ meter 5 meter ½ meter
AHN1 58dz1.tif.zip public domain
AHN2 r58dz1.tif.zip ahn2_5_58dz1.tif.zip i58dz1.tif.zip public domain *
AHN3 R5_58DZ1.zip R_58DZ1.zip M5_58DZ1.zip M_58DZ1.zip CC-0
AHN4 R5_58DZ1.zip R_58DZ1.zip M5_58DZ1.zip M_58DZ1.zip CC-0 [1, 2, 3, 4]

Aerial photograph

Year Version GeoTiff Source License
2016 RGB RGB_58DZ1.tiff 64.0 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_58DZ1.tiff 61.0 MiB CC-BY 4.0
2017 RGB RGB_58DZ1.tiff 55.9 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_58DZ1.tiff 55.0 MiB CC-BY 4.0
2018 RGB RGB_58DZ1.tiff 72.8 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_58DZ1.tiff 71.4 MiB CC-BY 4.0
2019 RGB RGB_58DZ1.tiff 66.2 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_58DZ1.tiff 60.7 MiB CC-BY 4.0
2020 RGB RGB_58DZ1.tiff 71.6 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_58DZ1.tiff 69.3 MiB CC-BY 4.0
2022 RGB RGB_58DZ1.tiff 57.1 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_58DZ1.tiff 56.8 MiB CC-BY 4.0
2023 RGB RGB_58DZ1.tiff 69.3 MiB Beeldmateriaal CC-BY 4.0
CIR CIR_58DZ1.tiff 69.3 MiB CC-BY 4.0

Sub-tiles 58DZ1

Image adapted from Kadaster TOPraster and OpenTopo.

Actueel Hoogtebestand Nederland

Point cloud

These sub-tiles of 1×1.25 km are clipped from the original point cloud. Goal is to enable distributed processing of the point cloud. Therefore, a 25 m overlap to the neighbouring (sub-)tiles is added. Thanks to the overlap between sub-tiles, the sub-tiles can be processed independently and therefore parallel.

All other data sets on this website are only available in the main tiling schema.

Tile Version Point cloud Spatial index Info Residential areas License
58DZ1_01 AHN1 58DZ1_01.LAZ 1.6 MiB 58DZ1_01.LAX 5 kiB 58DZ1_01.txt 13 kiB Heel AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_01.LAZ 117.5 MiB 58DZ1_01.LAX 66 kiB 58DZ1_01.txt 15 kiB
AHN3 58DZ1_01.LAZ 115.9 MiB 58DZ1_01.LAX 58 kiB 58DZ1_01.txt 16 kiB
AHN4 58DZ1_01.LAZ 170.3 MiB 58DZ1_01.LAX 69 kiB 58DZ1_01.txt 17 kiB
58DZ1_02 AHN1 58DZ1_02.LAZ 1.9 MiB 58DZ1_02.LAX 6 kiB 58DZ1_02.txt 12 kiB Beegden, Heel AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_02.LAZ 104.3 MiB 58DZ1_02.LAX 86 kiB 58DZ1_02.txt 21 kiB
AHN3 58DZ1_02.LAZ 151.9 MiB 58DZ1_02.LAX 82 kiB 58DZ1_02.txt 22 kiB
AHN4 58DZ1_02.LAZ 270.4 MiB 58DZ1_02.LAX 89 kiB 58DZ1_02.txt 22 kiB
58DZ1_03 AHN1 58DZ1_03.LAZ 1.9 MiB 58DZ1_03.LAX 5 kiB 58DZ1_03.txt 13 kiB Beegden AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_03.LAZ 81.6 MiB 58DZ1_03.LAX 96 kiB 58DZ1_03.txt 17 kiB
AHN3 58DZ1_03.LAZ 139.3 MiB 58DZ1_03.LAX 94 kiB 58DZ1_03.txt 18 kiB
AHN4 58DZ1_03.LAZ 213.0 MiB 58DZ1_03.LAX 95 kiB 58DZ1_03.txt 19 kiB
58DZ1_04 AHN1 58DZ1_04.LAZ 1.2 MiB 58DZ1_04.LAX 4 kiB 58DZ1_04.txt 8 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_04.LAZ 42.9 MiB 58DZ1_04.LAX 26 kiB 58DZ1_04.txt 17 kiB
AHN3 58DZ1_04.LAZ 84.1 MiB 58DZ1_04.LAX 62 kiB 58DZ1_04.txt 17 kiB
AHN4 58DZ1_04.LAZ 133.2 MiB 58DZ1_04.LAX 66 kiB 58DZ1_04.txt 18 kiB
58DZ1_05 AHN1 58DZ1_05.LAZ 1.4 MiB 58DZ1_05.LAX 5 kiB 58DZ1_05.txt 10 kiB Ool, Herten AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_05.LAZ 40.8 MiB 58DZ1_05.LAX 53 kiB 58DZ1_05.txt 13 kiB
AHN3 58DZ1_05.LAZ 87.5 MiB 58DZ1_05.LAX 68 kiB 58DZ1_05.txt 13 kiB
AHN4 58DZ1_05.LAZ 143.3 MiB 58DZ1_05.LAX 65 kiB 58DZ1_05.txt 15 kiB
58DZ1_06 AHN1 58DZ1_06.LAZ 3.1 MiB 58DZ1_06.LAX 5 kiB 58DZ1_06.txt 13 kiB Heel AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_06.LAZ 97.0 MiB 58DZ1_06.LAX 96 kiB 58DZ1_06.txt 19 kiB
AHN3 58DZ1_06.LAZ 208.0 MiB 58DZ1_06.LAX 95 kiB 58DZ1_06.txt 20 kiB
AHN4 58DZ1_06.LAZ 305.5 MiB 58DZ1_06.LAX 95 kiB 58DZ1_06.txt 21 kiB
58DZ1_07 AHN1 58DZ1_07.LAZ 1.8 MiB 58DZ1_07.LAX 4 kiB 58DZ1_07.txt 12 kiB Heel AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_07.LAZ 76.7 MiB 58DZ1_07.LAX 94 kiB 58DZ1_07.txt 28 kiB
AHN3 58DZ1_07.LAZ 164.7 MiB 58DZ1_07.LAX 95 kiB 58DZ1_07.txt 29 kiB
AHN4 58DZ1_07.LAZ 223.1 MiB 58DZ1_07.LAX 96 kiB 58DZ1_07.txt 21 kiB
58DZ1_08 AHN1 58DZ1_08.LAZ 1.6 MiB 58DZ1_08.LAX 4 kiB 58DZ1_08.txt 11 kiB Osen AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_08.LAZ 71.1 MiB 58DZ1_08.LAX 63 kiB 58DZ1_08.txt 20 kiB
AHN3 58DZ1_08.LAZ 121.9 MiB 58DZ1_08.LAX 81 kiB 58DZ1_08.txt 18 kiB
AHN4 58DZ1_08.LAZ 178.7 MiB 58DZ1_08.LAX 83 kiB 58DZ1_08.txt 19 kiB
58DZ1_09 AHN1 58DZ1_09.LAZ 1.0 MiB 58DZ1_09.LAX 5 kiB 58DZ1_09.txt 9 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_09.LAZ 44.1 MiB 58DZ1_09.LAX 56 kiB 58DZ1_09.txt 13 kiB
AHN3 58DZ1_09.LAZ 84.5 MiB 58DZ1_09.LAX 55 kiB 58DZ1_09.txt 14 kiB
AHN4 58DZ1_09.LAZ 104.5 MiB 58DZ1_09.LAX 52 kiB 58DZ1_09.txt 15 kiB
58DZ1_10 AHN1 58DZ1_10.LAZ 1.6 MiB 58DZ1_10.LAX 5 kiB 58DZ1_10.txt 11 kiB Merum, Herten, Ool AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_10.LAZ 57.3 MiB 58DZ1_10.LAX 70 kiB 58DZ1_10.txt 14 kiB
AHN3 58DZ1_10.LAZ 96.9 MiB 58DZ1_10.LAX 70 kiB 58DZ1_10.txt 15 kiB
AHN4 58DZ1_10.LAZ 159.2 MiB 58DZ1_10.LAX 72 kiB 58DZ1_10.txt 15 kiB
58DZ1_11 AHN1 58DZ1_11.LAZ 1.4 MiB 58DZ1_11.LAX 6 kiB 58DZ1_11.txt 13 kiB Pol AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_11.LAZ 47.4 MiB 58DZ1_11.LAX 66 kiB 58DZ1_11.txt 22 kiB
AHN3 58DZ1_11.LAZ 90.9 MiB 58DZ1_11.LAX 68 kiB 58DZ1_11.txt 23 kiB
AHN4 58DZ1_11.LAZ 136.2 MiB 58DZ1_11.LAX 73 kiB 58DZ1_11.txt 23 kiB
58DZ1_12 AHN1 58DZ1_12.LAZ 1.3 MiB 58DZ1_12.LAX 4 kiB 58DZ1_12.txt 11 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_12.LAZ 40.7 MiB 58DZ1_12.LAX 40 kiB 58DZ1_12.txt 31 kiB
AHN3 58DZ1_12.LAZ 79.4 MiB 58DZ1_12.LAX 64 kiB 58DZ1_12.txt 32 kiB
AHN4 58DZ1_12.LAZ 140.8 MiB 58DZ1_12.LAX 75 kiB 58DZ1_12.txt 31 kiB
58DZ1_13 AHN1 58DZ1_13.LAZ 1.6 MiB 58DZ1_13.LAX 5 kiB 58DZ1_13.txt 11 kiB Weerd AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_13.LAZ 62.7 MiB 58DZ1_13.LAX 79 kiB 58DZ1_13.txt 20 kiB
AHN3 58DZ1_13.LAZ 127.1 MiB 58DZ1_13.LAX 79 kiB 58DZ1_13.txt 21 kiB
AHN4 58DZ1_13.LAZ 225.6 MiB 58DZ1_13.LAX 87 kiB 58DZ1_13.txt 20 kiB
58DZ1_14 AHN1 58DZ1_14.LAZ 1.1 MiB 58DZ1_14.LAX 5 kiB 58DZ1_14.txt 10 kiB Linne AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_14.LAZ 37.0 MiB 58DZ1_14.LAX 60 kiB 58DZ1_14.txt 14 kiB
AHN3 58DZ1_14.LAZ 72.5 MiB 58DZ1_14.LAX 64 kiB 58DZ1_14.txt 15 kiB
AHN4 58DZ1_14.LAZ 115.1 MiB 58DZ1_14.LAX 67 kiB 58DZ1_14.txt 16 kiB
58DZ1_15 AHN1 58DZ1_15.LAZ 1.7 MiB 58DZ1_15.LAX 5 kiB 58DZ1_15.txt 14 kiB Merum, Linne AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_15.LAZ 54.5 MiB 58DZ1_15.LAX 77 kiB 58DZ1_15.txt 16 kiB
AHN3 58DZ1_15.LAZ 111.2 MiB 58DZ1_15.LAX 76 kiB 58DZ1_15.txt 18 kiB
AHN4 58DZ1_15.LAZ 154.6 MiB 58DZ1_15.LAX 77 kiB 58DZ1_15.txt 18 kiB
58DZ1_16 AHN1 58DZ1_16.LAZ 1.6 MiB 58DZ1_16.LAX 4 kiB 58DZ1_16.txt 14 kiB Maasbracht AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_16.LAZ 62.2 MiB 58DZ1_16.LAX 67 kiB 58DZ1_16.txt 19 kiB
AHN3 58DZ1_16.LAZ 131.5 MiB 58DZ1_16.LAX 82 kiB 58DZ1_16.txt 20 kiB
AHN4 58DZ1_16.LAZ 314.7 MiB 58DZ1_16.LAX 83 kiB 58DZ1_16.txt 21 kiB
58DZ1_17 AHN1 58DZ1_17.LAZ 1.9 MiB 58DZ1_17.LAX 4 kiB 58DZ1_17.txt 33 kiB Brachterbeek AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_17.LAZ 90.6 MiB 58DZ1_17.LAX 88 kiB 58DZ1_17.txt 45 kiB
AHN3 58DZ1_17.LAZ 181.4 MiB 58DZ1_17.LAX 89 kiB 58DZ1_17.txt 46 kiB
AHN4 58DZ1_17.LAZ 413.5 MiB 58DZ1_17.LAX 93 kiB 58DZ1_17.txt 48 kiB
58DZ1_18 AHN1 58DZ1_18.LAZ 1.8 MiB 58DZ1_18.LAX 5 kiB 58DZ1_18.txt 14 kiB Weerd, Linne AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_18.LAZ 99.4 MiB 58DZ1_18.LAX 97 kiB 58DZ1_18.txt 19 kiB
AHN3 58DZ1_18.LAZ 204.8 MiB 58DZ1_18.LAX 98 kiB 58DZ1_18.txt 20 kiB
AHN4 58DZ1_18.LAZ 391.0 MiB 58DZ1_18.LAX 100 kiB 58DZ1_18.txt 21 kiB
58DZ1_19 AHN1 58DZ1_19.LAZ 2.2 MiB 58DZ1_19.LAX 4 kiB 58DZ1_19.txt 14 kiB Linne AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_19.LAZ 81.2 MiB 58DZ1_19.LAX 45 kiB 58DZ1_19.txt 18 kiB
AHN3 58DZ1_19.LAZ 170.3 MiB 58DZ1_19.LAX 97 kiB 58DZ1_19.txt 19 kiB
AHN4 58DZ1_19.LAZ 327.7 MiB 58DZ1_19.LAX 99 kiB 58DZ1_19.txt 19 kiB
58DZ1_20 AHN1 58DZ1_20.LAZ 2.0 MiB 58DZ1_20.LAX 4 kiB 58DZ1_20.txt 11 kiB Linne AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_20.LAZ 61.7 MiB 58DZ1_20.LAX 97 kiB 58DZ1_20.txt 17 kiB
AHN3 58DZ1_20.LAZ 128.6 MiB 58DZ1_20.LAX 98 kiB 58DZ1_20.txt 18 kiB
AHN4 58DZ1_20.LAZ 368.8 MiB 58DZ1_20.LAX 99 kiB 58DZ1_20.txt 19 kiB
58DZ1_21 AHN1 58DZ1_21.LAZ 2.2 MiB 58DZ1_21.LAX 4 kiB 58DZ1_21.txt 10 kiB Maasbracht, Brachterbeek AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_21.LAZ 85.9 MiB 58DZ1_21.LAX 58 kiB 58DZ1_21.txt 13 kiB
AHN3 58DZ1_21.LAZ 189.5 MiB 58DZ1_21.LAX 100 kiB 58DZ1_21.txt 15 kiB
AHN4 58DZ1_21.LAZ 584.9 MiB 58DZ1_21.LAX 100 kiB 58DZ1_21.txt 16 kiB
58DZ1_22 AHN1 58DZ1_22.LAZ 2.0 MiB 58DZ1_22.LAX 4 kiB 58DZ1_22.txt 10 kiB Brachterbeek AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_22.LAZ 72.6 MiB 58DZ1_22.LAX 98 kiB 58DZ1_22.txt 26 kiB
AHN3 58DZ1_22.LAZ 152.2 MiB 58DZ1_22.LAX 99 kiB 58DZ1_22.txt 25 kiB
AHN4 58DZ1_22.LAZ 471.4 MiB 58DZ1_22.LAX 100 kiB 58DZ1_22.txt 25 kiB
58DZ1_23 AHN1 58DZ1_23.LAZ 1.9 MiB 58DZ1_23.LAX 4 kiB 58DZ1_23.txt 11 kiB Brachterbeek, Linne AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_23.LAZ 96.5 MiB 58DZ1_23.LAX 97 kiB 58DZ1_23.txt 21 kiB
AHN3 58DZ1_23.LAZ 185.1 MiB 58DZ1_23.LAX 99 kiB 58DZ1_23.txt 22 kiB
AHN4 58DZ1_23.LAZ 549.4 MiB 58DZ1_23.LAX 100 kiB 58DZ1_23.txt 22 kiB
58DZ1_24 AHN1 58DZ1_24.LAZ 2.1 MiB 58DZ1_24.LAX 4 kiB 58DZ1_24.txt 14 kiB Linne AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_24.LAZ 89.7 MiB 58DZ1_24.LAX 97 kiB 58DZ1_24.txt 21 kiB
AHN3 58DZ1_24.LAZ 188.7 MiB 58DZ1_24.LAX 99 kiB 58DZ1_24.txt 22 kiB
AHN4 58DZ1_24.LAZ 588.0 MiB 58DZ1_24.LAX 100 kiB 58DZ1_24.txt 22 kiB
58DZ1_25 AHN1 58DZ1_25.LAZ 1.9 MiB 58DZ1_25.LAX 4 kiB 58DZ1_25.txt 13 kiB AHN (stuurgroep AHN, public data) and aerial photograph (Beeldmateriaal, CC-BY) remixed by GeoTiles, CC-BY
AHN2 58DZ1_25.LAZ 72.5 MiB 58DZ1_25.LAX 97 kiB 58DZ1_25.txt 18 kiB
AHN3 58DZ1_25.LAZ 161.7 MiB 58DZ1_25.LAX 98 kiB 58DZ1_25.txt 19 kiB
AHN4 58DZ1_25.LAZ 502.6 MiB 58DZ1_25.LAX 100 kiB 58DZ1_25.txt 20 kiB

No guarantee on availability, completeness, correctness or fitness for any particular purpose is implied by the distribution of or linking to this data. The license indicated with the products is to the best of my knowledge at the time of writing. Please confirm the applicable license with the source before integrating the data.