National Elevation Dataset

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. Where did the data come from?
  2. What changes have been made?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

Title: National Elevation Dataset

Abstract:

The U.S. Geological Survey has developed a National Elevation Dataset (NED). The NED is a seamless mosaic of best-available elevation data. The 7.5-minute elevation data for the conterminous United States are the primary initial source data. In addition to the availability of complete 7.5-minute data, efficient processing methods were developed to filter production artifacts in the existing data, convert to the NAD83 datum, edge-match, and fill slivers of missing data at quadrangle seams. One of the effects of the NED processing steps is a much-improved base of elevation data for calculating slope and hydrologic derivatives. The specifications for the NED 1 arc second and 1/3 arc second data are: Geographic coordinate system Horizontal datum of NAD83, except for AK which is NAD27 Vertical datum of NAVD88, except for AK which is NAVD29 Z units of meters

Supplemental_Information:

(Source DEM information)

QUADNAME	RESOLUTION	ULLAT	ULLON	LRLAT	LRLON	HDATUM	ZMIN	ZMAX	ZMEAN	ZSIGMA	PMETHOD	QUADDATE
leadpoint_oe_n_WA	10	49.12	-117.626	49	-117.501	27	406.944	1420.544	760.433	252.366	5	20030501
abercrombie_mountain_oe_n_WA	10	49.12	-117.501	49	-117.376	27	677.743	1567.743	1183.754	210.111	5	20030501
abercrombie_mountain_WA	10	49	-117.501	48.875	-117.376	27	665.743	2228.743	1400.65	301.866	5	19990308
abercrombie_mountain_oe_n_WA	10	49.12	-117.501	49	-117.376	27	677.743	1567.743	1183.754	210.111	5	20030501
abercrombie_mountain_oe_n_WA	10	49.12	-117.501	49	-117.376	27	677.743	1567.743	1183.754	210.111	5	20030501
boundary_dam_WA	10	49	-117.376	48.875	-117.251	27	526.135	1909.935	924.063	202.135	5	19990308
sandpoint-w	3	49	-118	48	-117	72	392.248	2135.248	960.6	301.762	0	19990308
copeland_ID	10	49	-116.501	48.875	-116.376	27	526.307	2009.807	738.458	333.767	5	20000801
hall_mountain_ID	10	49	-116.376	48.875	-116.251	27	537.029	1953.929	1154.935	297.939	5	20000801
gypsy_peak_WA	10	49	-117.251	48.875	-117.126	27	939.858	2235.158	1535.767	268.235	5	19990308
leadpoint_WA	10	49	-117.626	48.875	-117.501	27	433.144	1709.144	950.05	227.21	5	19990308
grass_mountain_ID	10	49	-116.876	48.875	-116.751	27	1154.902	2102.902	1582.492	186.997	5	20010601
shorty_peak_ID	10	49	-116.751	48.875	-116.626	27	734.471	2096.571	1480.454	245.793	5	20010601
smith_falls_ID	10	49	-116.626	48.875	-116.501	27	527.087	2311.687	1121.389	449.796	5	20010601
continental_mountain_ID	10	49	-117.001	48.875	-116.876	27	823.957	2310.357	1386.735	291.967	5	20010601
salmo_mountain_WA	10	49	-117.126	48.875	-117.001	27	891.278	2101.578	1569.554	229.977	5	19990308
deep_lake_WA	10	48.875	-117.626	48.75	-117.501	27	604.966	1943.366	1157.274	254.356	5	19990308
metaline_WA	10	48.875	-117.501	48.75	-117.376	27	607.835	1895.035	1027.287	323.36	5	19990308
metaline_falls_WA	10	48.875	-117.376	48.75	-117.251	27	607.855	1931.055	1104.422	244.172	5	19990308
pass_creek_WA	10	48.875	-117.251	48.75	-117.126	27	833.337	1999.837	1425.851	242.338	5	19990308
helmer_mountain_WA	10	48.875	-117.126	48.75	-117.001	27	880.018	2053.218	1413.536	229.751	5	19990308
upper_priest_lake_ID	10	48.875	-117.001	48.75	-116.876	27	744.37	1802.37	1078.418	239.878	5	20010601
caribou_creek_ID	10	48.875	-116.876	48.75	-116.751	27	744.407	2053.507	1306.46	310.197	5	20010601
smith_peak_ID	10	48.875	-116.751	48.75	-116.626	27	975.596	2333.596	1681.579	224.82	5	20010601
pyramid_peak_ID	10	48.875	-116.626	48.75	-116.501	27	1133.475	2350.675	1782.101	222.083	5	20010601
farnham_peak_ID	10	48.875	-116.501	48.75	-116.376	27	526.152	2136.752	1043.253	486.485	5	20010601
ritz_ID	10	48.875	-116.376	48.75	-116.251	27	535.107	1427.407	786.714	166.404	5	20010601
aladdin_mountain_WA	10	48.75	-117.626	48.625	-117.501	27	838.491	1588.891	1171.639	132.357	5	19990308
ione_WA	10	48.75	-117.501	48.625	-117.376	27	620.316	1407.416	860.904	176.223	5	19990308
scotchman_lake_WA	10	48.75	-117.376	48.625	-117.251	27	620.392	2063.692	1190.448	335.022	5	19990308
monumental_mountain_WA	10	48.75	-117.251	48.625	-117.126	27	961.105	1942.005	1363.871	199.575	5	19990308
orwig_hump_WA	10	48.75	-117.126	48.625	-117.001	27	842.961	1746.161	1155.299	144.44	5	19990308
priest_lake_nw_ID	10	48.75	-117.001	48.625	-116.876	27	744.363	1687.363	1044.586	210.618	5	20010601
priest_lake_ne_ID	10	48.75	-116.876	48.625	-116.751	27	744.353	1987.053	1028.825	288.096	5	20010601
the_wigwams_ID	10	48.75	-116.751	48.625	-116.626	27	1078.568	2311.268	1717.085	210.668	5	20010601
roman_nose_ID	10	48.75	-116.626	48.625	-116.501	27	994.418	2207.918	1552.082	215.667	5	20010601
moravia_ID	10	48.75	-116.501	48.625	-116.376	27	532.104	1954.104	940.237	325.988	5	20010601
bonners_ferry_ID	10	48.75	-116.376	48.625	-116.251	27	532.08	1252.08	641.168	82.626	5	20010601
lake_gillette_WA	10	48.625	-117.626	48.5	-117.501	27	900.859	1695.459	1134.841	126.176	5	19990308
timber_mountain_WA	10	48.625	-117.501	48.5	-117.376	27	637.448	1664.948	1129.175	192.178	5	19990308
ruby_WA	10	48.625	-117.376	48.5	-117.251	27	620.279	1264.179	806.857	118.537	5	19990308
north_baldy_WA	10	48.625	-117.251	48.5	-117.126	27	717.967	1882.267	1188.476	209.223	5	19990308
gleason_mountain_WA	10	48.625	-117.126	48.5	-117.001	27	785.947	1673.447	1063.846	165.372	5	19990308
priest_lake_sw_ID	10	48.625	-117.001	48.5	-116.876	27	734.509	1285.409	850.987	112.231	5	20010601
priest_lake_se_ID	10	48.625	-116.876	48.5	-116.751	27	738.743	1786.943	1025.432	286.572	5	19990602
mount_roothaan_ID	10	48.625	-116.751	48.5	-116.626	27	953.65	2241.85	1564.545	234.837	5	20010601
dodge_peak_ID	10	48.625	-116.626	48.5	-116.501	27	679.862	2126.262	1236.097	252.12	5	20010601
naples_ID	10	48.625	-116.501	48.5	-116.376	27	561.769	1507.469	806.873	189.859	5	20010601
twentymile_creek_ID	10	48.625	-116.376	48.5	-116.251	27	605.344	1862.344	1139.31	305.959	5	20010601
calispell_peak_WA	10	48.5	-117.626	48.375	-117.501	27	793.891	2088.791	1263.119	242.447	5	19990308
tacoma_peak_WA	10	48.5	-117.501	48.375	-117.376	27	743.751	2069.551	1183.897	259.809	5	19990308
jared_WA	10	48.5	-117.376	48.375	-117.251	27	620.259	1248.559	737.864	115.293	5	19990308
browns_lake_WA	10	48.5	-117.251	48.375	-117.126	27	694.257	1823.157	1208.018	205.156	5	19990308
galena_point_WA	10	48.5	-117.126	48.375	-117.001	27	751.137	1652.037	1002.825	184.688	5	19990308
outlet_bay_ID	10	48.5	-117.001	48.375	-116.876	27	684.194	1200.094	814.446	90.611	5	20010601
coolin_ID	10	48.5	-116.876	48.375	-116.751	27	683.707	1919.907	923.533	222.82	5	19990602
mount_casey_ID	10	48.5	-116.751	48.375	-116.626	27	797.92	2042.02	1482.376	240.431	5	20010601
colburn_ID	10	48.5	-116.626	48.375	-116.501	27	637.628	1855.328	1007.905	281.118	5	20010601
elmira_ID	10	48.5	-116.501	48.375	-116.376	27	634.478	1207.278	733.892	102.897	5	20010601
wylie_knob_ID	10	48.5	-116.376	48.375	-116.251	27	686.611	1832.411	991.663	194.783	5	20010601
goddards_peak_WA	10	48.375	-117.626	48.25	-117.501	27	791.196	1759.996	1233.303	173.884	5	19990308
winchester_peak_WA	10	48.375	-117.501	48.25	-117.376	27	665.337	1636.037	1039.427	200.8	5	19990308
cusick_WA	10	48.375	-117.376	48.25	-117.251	27	618.374	995.274	653.774	43.347	5	19990308
skookum_creek_WA	10	48.375	-117.251	48.25	-117.126	27	620.292	1480.192	848.586	194.183	5	19990308
bead_lake_WA	10	48.375	-117.126	48.25	-117.001	27	716.413	1469.713	944.584	177.137	5	19990308
quartz_mountain_ID	10	48.375	-117.001	48.25	-116.876	27	668.497	1250.897	820.403	107.578	5	20010601
prater_mountain_ID	10	48.375	-116.876	48.25	-116.751	27	652.726	1723.726	886.374	196.776	5	20010601
happy_fork_gap_ID	10	48.375	-116.751	48.25	-116.626	27	628.663	1948.863	1197.124	339.304	5	20010601
sandpoint_ID	10	48.375	-116.626	48.25	-116.501	27	625.496	1656.196	794.977	239.863	5	20010601
oden_bay_ID	10	48.375	-116.501	48.25	-116.376	27	613.572	1076.272	660.51	56.753	5	20010601
trout_peak_ID	10	48.375	-116.376	48.25	-116.251	27	629.725	1786.825	1029.349	261.032	5	20010601
nelson_peak_WA	10	48.25	-117.626	48.125	-117.501	27	599.45	1575.95	979.475	189.287	5	19990308
boyer_mountain_WA	10	48.25	-117.501	48.125	-117.376	27	638.171	1604.671	1017.426	191.66	5	19990308
sacheen_lake_WA	10	48.25	-117.376	48.125	-117.251	27	621.208	1285.708	763.859	81.808	5	19990308
diamond_lake_WA	10	48.25	-117.251	48.125	-117.126	27	620.303	1052.003	755.908	77.12	5	19990308
newport_WA	10	48.25	-117.126	48.125	-117.001	27	616.077	1272.777	743.673	96.353	5	19990308
priest_river_ID	10	48.25	-117.001	48.125	-116.876	27	623.079	1425.279	805.891	157.353	5	20010601
laclede_ID	10	48.25	-116.876	48.125	-116.751	27	629.317	1429.617	816.011	170.448	5	20010601
morton_ID	10	48.25	-116.751	48.125	-116.626	27	625.778	1190.978	757.573	123.426	5	20010601
sagle_ID	10	48.25	-116.626	48.125	-116.501	27	629.696	1495.096	774.622	158.14	5	19990602
talache_ID	10	48.25	-116.501	48.125	-116.376	27	622.199	1294.799	764.638	152.358	5	20010601
hope_ID	10	48.25	-116.376	48.125	-116.251	27	629.67	1505.77	669.719	113.066	5	20010601
deer_lake_WA	10	48.125	-117.626	48	-117.501	27	651.618	1210.318	799.316	98.504	5	20010201
fan_lake_WA	10	48.125	-117.501	48	-117.376	27	574.907	1100.007	724.876	86.741	5	20010201
elk_WA	10	48.125	-117.376	48	-117.251	27	555.918	1089.318	709.217	87.397	5	20010201
camden_WA	10	48.125	-117.251	48	-117.126	27	574.298	1258.798	769.005	115.267	5	20010201
tweedie_WA	10	48.125	-117.126	48	-117.001	27	646.681	1247.281	795.278	108.592	5	20010201
blanchard_ID	10	48.125	-117.001	48	-116.876	27	685.426	1555.726	966.952	217.786	5	20010401
edgemere_ID	10	48.125	-116.876	48	-116.751	27	652.574	1057.474	717.7	66.747	5	19990602
careywood_ID	10	48.125	-116.751	48	-116.626	27	649.221	1387.521	859.02	153.341	5	20010401
cocolalla_ID	10	48.125	-116.626	48	-116.501	27	629.716	1515.216	855.53	173.86	5	20010401
minerva_peak_ID	10	48.125	-116.501	48	-116.376	27	629.501	1676.701	838.449	264.567	5	20010401
packsaddle_mountain_ID	10	48.125	-116.376	48	-116.251	27	626.052	1953.752	1275.262	201.909	5	20010401
clayton_WA	10	48	-117.626	47.875	-117.501	27	620.186	1090.786	687.887	59.034	5	20010201
deer_park_WA	10	48	-117.501	47.875	-117.376	27	519.286	696.686	635.846	28.939	5	20010201
chattaroy_WA	10	48	-117.376	47.875	-117.251	27	513.178	817.078	618.584	56.623	5	20010201
mount_kit_carson_WA	10	48	-117.251	47.875	-117.126	27	597.926	1611.126	897.172	199.201	5	20010201
mount_spokane_WA	10	48	-117.126	47.875	-117.001	27	702.241	1794.341	1074.832	219.507	5	20010201
spirit_lake_west_ID	10	48	-117.001	47.875	-116.876	27	704.119	1410.019	898.061	148.144	5	20010401
spirit_lake_east_ID	10	48	-116.876	47.875	-116.751	27	667.999	1057.499	761.127	40.269	5	20010401
athol_ID	10	48	-116.751	47.875	-116.626	27	642.791	1453.891	754.951	96.496	5	20010401
bayview_ID	10	48	-116.626	47.875	-116.501	27	629.821	1713.921	935.26	261.761	5	20010401
lakeview_ID	10	48	-116.501	47.875	-116.376	27	629.73	1600.93	1069.019	259.164	5	20010401
faset_peak_ID	10	48	-116.376	47.875	-116.251	27	890.349	1630.549	1213.598	132.311	5	20010401
nine_mile_falls_WA	10	47.875	-117.626	47.75	-117.501	27	468.667	949.067	631.732	98.172	5	20010201
dartford_WA	10	47.875	-117.501	47.75	-117.376	27	470.774	898.174	622.455	78.525	5	20010201
mead_WA	10	47.875	-117.376	47.75	-117.251	27	497.069	739.969	598.566	53.064	5	20010201
foothills_WA	10	47.875	-117.251	47.75	-117.126	27	561.086	1137.386	763.968	116.083	5	20010201
newman_lake_WA	10	47.875	-117.126	47.75	-117.001	27	648.202	1502.302	851.833	185.717	5	20010201
rathdrum_ID	10	47.875	-117.001	47.75	-116.876	27	638.692	1527.192	845.48	192.849	5	20010401
hayden_ID	10	47.875	-116.876	47.75	-116.751	27	670.575	935.975	706.541	22.545	5	20010401
hayden_lake_ID	10	47.875	-116.751	47.75	-116.626	27	678.271	1321.771	823.636	123.107	5	20010401
spades_mountain_ID	10	47.875	-116.626	47.75	-116.501	27	764.419	1725.919	1150.303	157.97	5	20010401
cataract_peak_ID	10	47.875	-116.501	47.75	-116.376	27	835.234	1613.434	1200.081	156.462	5	20010401
lamb_peak_ID	10	47.875	-116.376	47.75	-116.251	27	889.693	1538.593	1132.378	107.384	5	20010401
airway_heights_WA	10	47.75	-117.626	47.625	-117.501	27	489.974	745.774	667.718	65.686	5	20010201
spokane_nw_WA	10	47.75	-117.501	47.625	-117.376	27	493.756	735.956	617.113	53.363	5	20010201
spokane_ne_WA	10	47.75	-117.376	47.625	-117.251	27	569.262	881.362	647.317	54.978	5	20010201
greenacres_WA	10	47.75	-117.251	47.625	-117.126	27	583.261	1027.061	671.564	78.693	5	20010201
liberty_lake_WA	10	47.75	-117.126	47.625	-117.001	27	607.664	1387.364	705.255	109.412	5	20010201
post_falls_ID	10	47.75	-117.001	47.625	-116.876	27	620.78	1529.68	806.031	181.768	5	20010401
coeur_d'alene_ID	10	47.75	-116.876	47.625	-116.751	27	648.85	942.35	705.747	52.639	5	20010401
fernan_lake_ID	10	47.75	-116.751	47.625	-116.626	27	648.552	1309.052	835.528	139.458	5	20010401
wolf_lodge_ID	10	47.75	-116.626	47.625	-116.501	27	651.869	1510.169	1011.135	190.579	5	20010401
skitwish_peak_ID	10	47.75	-116.501	47.625	-116.376	27	736.092	1630.692	1112.422	187.588	5	20010401
bumblebee_peak_ID	10	47.75	-116.376	47.625	-116.251	27	675.891	1504.491	1028.704	166.284	5	20010401
four_lakes_WA	10	47.625	-117.626	47.5	-117.501	27	650.083	881.983	736.527	31.321	5	20010201
spokane_sw_WA	10	47.625	-117.501	47.5	-117.376	27	542.365	838.065	687.045	45.367	5	20010201
spokane_se_WA	10	47.625	-117.376	47.5	-117.251	27	569.271	1117.871	754.438	94.806	5	20010201
freeman_WA	10	47.625	-117.251	47.5	-117.126	27	598.59	1179.49	787.305	90.71	5	20010201
mica_peak_ID	10	47.625	-117.126	47.5	-117.001	27	624.506	1586.406	957.827	192.949	5	20010201
rockford_bay_ID	10	47.625	-117.001	47.5	-116.876	27	648.875	1600.975	899.223	175.073	5	20010401
mica_bay_ID	10	47.625	-116.876	47.5	-116.751	27	648.816	1161.316	746.364	105.617	5	20010401
mount_coeur_d'alene_ID	10	47.625	-116.751	47.5	-116.626	27	648.852	1349.952	913.099	144.434	5	20010401
lane_ID	10	47.625	-116.626	47.5	-116.501	27	646.727	1309.027	884.126	150.143	5	20010401
rose_lake_ID	10	47.625	-116.501	47.5	-116.376	27	649.598	1260.098	805.512	137.332	5	20010401
cataldo_ID	10	47.625	-116.376	47.5	-116.251	27	649.628	1298.128	845.565	137.451	5	20010401
cheney_WA	10	47.5	-117.626	47.375	-117.501	27	659.777	778.377	708.372	14.598	5	20010201
spangle_west_WA	10	47.5	-117.501	47.375	-117.376	27	692.675	803.975	728.425	21.324	5	20010201
spangle_east_WA	10	47.5	-117.376	47.375	-117.251	27	587.264	812.764	746.263	43.975	5	20010201
fairfield_WA	10	47.5	-117.251	47.375	-117.126	27	618.066	929.566	774.085	33.272	5	20010201
setters_ID	10	47.5	-117.126	47.375	-117.001	27	725.673	910.073	787.238	20.198	5	20010201
worley_ID	10	47.5	-117.001	47.375	-116.876	27	648.854	1165.854	808.408	65.376	5	20010401
harrison_ID	10	47.5	-116.876	47.375	-116.751	27	648.817	1099.717	769.377	92.098	5	20010401
black_lake_ID	10	47.5	-116.751	47.375	-116.626	27	648.233	1162.333	792.794	95.441	5	20010401
medimont_ID	10	47.5	-116.626	47.375	-116.501	27	648.436	1661.636	940.339	212.894	5	20010401
rochat_peak_ID	10	47.5	-116.501	47.375	-116.376	27	720.872	1874.372	1240.096	226.246	5	20010401
twin_crags_ID	10	47.5	-116.376	47.375	-116.251	27	739.491	1955.691	1288.376	255.99	5	20010401

1. How should this data set be cited?

   U.S. Geological Survey (USGS), EROS Data Center, 1999, National Elevation Dataset: U.S. Geological Survey, Sioux Falls, SD.

   Online Links:

   • <http://gisdata.usgs.net/ned/>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate:-117.52237654

   East_Bounding_Coordinate:-116.25638328

   North_Bounding_Coordinate:49.26339787

   South_Bounding_Coordinate:47.39078283

3. What does it look like?
4. Does the data set describe conditions during a particular time period?

   Beginning_Date: 01-Feb-1999

   Ending_Date: Unknown

   Currentness_Reference: publication date

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: raster digital data

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Raster data set.

   2. What coordinate system is used to represent geographic features?
7. How does the data set describe geographic features?

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • U.S. Geological Survey (USGS), EROS Data Center
2. Who also contributed to the data set?
3. To whom should users address questions about the data?

Why was the data set created?

Geospatial elevation data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, mapping, and visualization applications.

How was the data set created?

1. Where did the data come from?
2. What changes have been made?

How reliable are the data; what problems remain in the data set?

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None

Use_Constraints:

None. Acknowledgement of the originating agencies would be appreciated in products derived from these data.

1. Who distributes the data set? (Distributor 1 of 1)

   Customer Services Representative
   EROS Data Center
   U.S. Geological Survey
   EROS Data Center
   Sioux Falls, SD 57198
   USA
   

   605-594-6151 (voice)
   605-594-6589 (FAX)
   custserv@edcmail.cr.usgs.gov
   

2. What's the catalog number I need to order this data set?

   National Elevation Dataset (NED)

3. What legal disclaimers am I supposed to read?

   Although these data have been processed successfully on a computer system at the U.S. Geological Survey, EROS Data Center, no warranty expressed or implied is made by either regarding the utility of the data on any system, nor shall the act of distribution constitute any such warranty. The USGS will warrant the delivery of this product in computer-readable format and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer peripherals, or when the physical medium is delivered in damaged condition. Requests for adjustments of credit must be made within 90 days from the date of this shipment from the ordering site.

4. How can I download or order the data?

Who wrote the metadata?

Dates:

Last modified: 11-Feb-1999

Metadata author:

Customer Services Representative
EROS Data Center
U.S. Geological Survey
EROS Data Center
Sioux Falls, SD 57198
USA

605-594-6151 (voice)
605-594-6589 (FAX)
custserv@edcmail.cr.usgs.gov

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)