National Elevation Dataset

Frequently-anticipated questions:

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)
    QUADNAMERESOLUTIONULLATULLONLRLATLRLONHDATUMZMINZMAXZMEANZSIGMAPMETHODQUADDATE
    bonnet_top_MT1049-115.75148.875-115.62627896.3941787.3941196.675190.267520000801
    hall_mountain_ID1049-116.37648.875-116.25127537.0291953.9291154.935297.939520000801
    garver_mountain_MT1049-115.87648.875-115.751271004.0521846.6521411.087161.783520000801
    red_mountain_MT1049-115.37648.875-115.25127844.0542038.8541431.671253.458520000801
    rexford_MT3049-115.25148.875-115.12627751.1841156.184814.68270.784519990406
    eureka_north_MT1049-115.12648.875-115.00127753.1061780.406875.267121.025520031001
    ksanka_peak_MT1049-115.00148.875-114.87627881.1682384.0681631.235402.07520000801
    northwest_peak_MT1049-116.00148.875-115.876271296.732350.731787.026194.108520000801
    eastport_ID1049-116.25148.875-116.12627749.7231862.9231135.372298.829520000801
    canuck_peak_MT1049-116.12648.875-116.001271078.3072114.8071643.464171.378520000801
    mount_henry_MT1049-115.62648.875-115.50127940.1082211.9081360.953256.7520000801
    robinson_mountain_MT1049-115.50148.875-115.376271115.162300.161590.277243.213520000801
    mount_baldy_MT1048.875-116.00148.75-115.87627833.4181992.9181365.847254.692520031001
    clark_mountain_MT1048.875-115.87648.75-115.75127861.2311954.9311286.152239.375520031001
    yaak_MT1048.875-115.75148.75-115.62627890.0931720.2931128.962166.396520031001
    lost_horse_mountain_MT3048.875-115.62648.75-115.50127967.252102.251531.826225.845519990406
    boulder_lakes_MT3048.875-115.50148.75-115.37627819.2692150.2691563.499265.558219990406
    webb_mountain_MT3048.875-115.37648.75-115.25127751.1981869.1981259.617303.478519990406
    beartrap_mountain_MT3048.875-115.25148.75-115.12627754.2531713.2531187.36264.649519990406
    eureka_south_MT1048.875-115.12648.75-115.00127785.8431600.1431109.204178.72520031001
    fortine_MT1048.875-115.00148.75-114.87627816.0231764.523943.79499.478520031001
    ritz_ID1048.875-116.37648.75-116.25127535.1071427.407786.714166.404520010601
    meadow_creek_ID1048.875-116.25148.75-116.12627618.4371843.9371048.592262.393520010601
    line_point_ID1048.875-116.12648.75-116.00127760.6872070.0871392.72319.673520010601
    flatiron_mountain_MT3048.75-115.75148.625-115.62627941.261956.261388.917184.577519990406
    pink_mountain_MT3048.75-115.62648.625-115.50127995.2612005.2611476.873155.97519990406
    parsnip_mountain_MT3048.75-115.50148.625-115.37627888.2771884.2771484.718180.127519990406
    inch_mountain_MT3048.75-115.37648.625-115.25127751.2041905.2041177.161314.635519990406
    mcguire_mountain_MT3048.75-115.25148.625-115.126271001.3242131.3241663.826181.294519990406
    pinkham_mountain_MT1048.75-115.12648.625-115.001271052.4031931.1031464.785146.433520031001
    edna_mountain_MT3048.75-115.00148.625-114.87627908.2521555.2521125.682125.295219990406
    bonners_ferry_ID1048.75-116.37648.625-116.25127532.081252.08641.16882.626520010601
    moyie_springs_ID1048.75-116.25148.625-116.12627536.5141894.514888.449318.139520010601
    curley_creek_ID1048.75-116.12648.625-116.00127543.892002.79909.094282.019520010601
    newton_mountain_MT3048.75-116.00148.625-115.87627675.2611989.2611262.622279.103519990406
    sylvanite_MT1048.75-115.87648.625-115.75127758.0352026.5351244.781255.034520031001
    gold_hill_MT3048.625-115.62648.5-115.50127807.2331773.2331195.35208.036519990406
    banfield_mountain_MT3048.625-115.50148.5-115.37627931.2761880.2761459.853169.884519990406
    ural_creek_MT3048.625-115.37648.5-115.25127750.2031835.2031174.093296.485519990406
    volcour_gulch_MT3048.625-115.25148.5-115.12627751.1861845.1861165.26299.019519990406
    davis_mountain_MT3048.625-115.12648.5-115.00127832.2451845.2451390.817183.253519990406
    skillet_mountain_MT3048.625-115.00148.5-114.876271016.2491724.2491311.046147.563519990406
    twentymile_creek_ID1048.625-116.37648.5-116.25127605.3441862.3441139.31305.959520010601
    clifty_mountain_ID1048.625-116.25148.5-116.12627861.5982043.0981471.856210.501520010601
    leonia_ID1048.625-116.12648.5-116.00127550.5211946.7211144.288314.278520010601
    kilbrennan_lake_MT3048.625-116.00148.5-115.87627522.1791523.179848.263187.628219990406
    pulpit_mountain_MT3048.625-115.87648.5-115.75127786.2771990.2771437.976259.589219990406
    turner_mountain_MT3048.625-115.75148.5-115.62627869.2732067.2731396.305228.766519990406
    libby_MT1048.5-115.62648.375-115.50127618.4931419.193834.732172.298520031001
    vermiculite_mountain_MT1048.5-115.50148.375-115.37627628.5031844.4031108.063229.668520031001
    alexander_mountain_MT1048.5-115.37648.375-115.25127633.2791539.879984.515195.301520031001
    cripple_horse_mountain_MT3048.5-115.25148.375-115.12627777.2281812.2281285.334208.909519990406
    warland_peak_MT3048.5-115.12648.375-115.00127958.2431818.2431429.931184.172219990406
    bowen_lake_MT3048.5-115.00148.375-114.87627946.2552024.2551382.59223.033519990406
    wylie_knob_ID1048.5-116.37648.375-116.25127686.6111832.411991.663194.783520010601
    mount_pend_oreille_ID1048.5-116.25148.375-116.12627927.8212058.3211497.182219.125520010601
    smith_mountain_ID1048.5-116.12648.375-116.00127792.3492038.4491420.393263.816520010601
    troy_MT1048.5-116.00148.375-115.87627565.0891748.489996.066252.531520031001
    kootenai_falls_MT1048.5-115.87648.375-115.75127566.0792126.4791036.166405.804520031001
    scenery_mountain_MT1048.5-115.75148.375-115.62627604.6132249.4131223.214364.475520031001
    little_hoodoo_mountain_MT3048.375-115.62648.25-115.50127638.1871736.187890.421168.976219990406
    swede_mountain_MT3048.375-115.50148.25-115.37627630.2061613.2061075.04210.201519990406
    tony_peak_MT3048.375-115.37648.25-115.25127634.1751617.1751053.047219.613519990406
    richards_mountain_MT3048.375-115.25148.25-115.12627815.2141860.2141310.748216.494519990406
    wolf_prairie_MT3048.375-115.12648.25-115.00127857.1421652.1421077.571145.365519990406
    horse_hill_MT3048.375-115.00148.25-114.87627931.1831886.1831280.187217.046120011201
    trout_peak_ID1048.375-116.37648.25-116.25127629.7251786.8251029.349261.032520010601
    trestle_peak_ID1048.375-116.25148.25-116.12627885.7741978.7741490.418222.831520010601
    benning_mountain_ID1048.375-116.12648.25-116.00127836.8892054.3891518.928241.945520010601
    spar_lake_MT3048.375-116.00148.25-115.87627705.2081911.2081172.62257.196219990406
    crowell_mountain_MT3048.375-115.87648.25-115.75127658.2362301.2361247.385471.903219990406
    treasure_mountain_MT1048.375-115.75148.25-115.62627886.7182345.3181684.964300.793520031001
    cable_mountain_MT3048.25-115.62648.125-115.50127828.2172124.2171222.295224.378219990406
    horse_mountain_MT3048.25-115.50148.125-115.37627804.191781.191217.015224.901519990406
    fisher_mountain_MT3048.25-115.37648.125-115.25127743.1851684.1851089.473238.268519990406
    calx_mountain_MT3048.25-115.25148.125-115.12627794.2451993.2451341.928229.013519990406
    deer_creek_MT3048.25-115.12648.125-115.001271006.2031808.2031312.543169.577519990406
    lynch_lake_MT3048.25-115.00148.125-114.876271053.1611498.1611174.88697.74120011201
    hope_ID1048.25-116.37648.125-116.25127629.671505.77669.719113.066520010601
    clark_fork_ID1048.25-116.25148.125-116.12627623.8041895.604973.85356.104520010601
    scotchman_peak_ID1048.25-116.12648.125-116.00127765.5982141.0981408.936363.849520010601
    sawtooth_mountain_MT3048.25-116.00148.125-115.87627721.2322114.2321382.541274.638519990406
    ibex_peak_MT3048.25-115.87648.125-115.75127702.1912335.1911124.92335.945519990406
    snowshoe_peak_MT3048.25-115.75148.125-115.62627801.342664.341724.077309.682519990406
    kenelty_mountain_MT3048.125-115.37648-115.25127856.1961808.1961193.782221.884519990406
    loon_lake_MT3048.125-115.25148-115.12627954.1991673.1991162.554132.989519990406
    thompson_lakes_MT3048.125-115.12648-115.001271016.1932014.1931268.812238.997519990406
    meadow_peak_MT3048.125-115.00148-114.876271004.182036.181374.353220.961119990406
    packsaddle_mountain_ID1048.125-116.37648-116.25127626.0521953.7521275.262201.909520010401
    derr_point_ID1048.125-116.25148-116.12627624.1341751.1341200.84279.321520010401
    cabinet_ID1048.125-116.12648-116.00127631.7931541.093949.067242.584520010401
    heron_MT1048.125-116.00148-115.87627664.072015.37993.74314.472520031001
    smeads_bench_MT1048.125-115.87648-115.75127664.0831930.7831034.105315.222520031001
    elephant_peak_MT1048.125-115.75148-115.62627767.5692421.0691491.879343.685520031001
    howard_lake_MT3048.125-115.62648-115.501271043.2762331.2761568.602276.847519990406
    barren_peak_MT3048.125-115.50148-115.37627867.1871673.1871190.012183.014519990406
    faset_peak_ID1048-116.37647.875-116.25127890.3491630.5491213.598132.311520010401
    cathedral_peak_ID1048-116.25147.875-116.12627852.4131642.3131163.588141.304520010401
    jordan_creek_ID1048-116.12647.875-116.00127782.5051686.2051248.91173.235520010401
    gem_peak_MT1048-116.00147.875-115.87627736.5351983.2351360.192251.24520010401
    noxon_MT1048-115.87647.875-115.75127664.1131712.4131147.973266.714520031001
    noxon_rapids_dam_MT3048-115.75147.875-115.62627662.1831856.183914.651226.033219990406
    goat_peak_MT3048-115.62647.875-115.50127768.2722099.2721424.047296.625519990406
    silver_butte_pass_MT3048-115.50147.875-115.37627920.2262049.2261371.784208.055519990406
    miller_lake_MT3048-115.37647.875-115.25127964.2181860.2181335.446171.986519990406
    mantrap_fork_MT3048-115.25147.875-115.126271038.2081774.2081300.828140.729519990406
    bend_MT3048-115.12647.875-115.00127960.1991756.1991243.351149.932119990406
    shroder_creek_MT3048-115.00147.875-114.87627998.2151960.2151412.199247.657519990406
    lamb_peak_ID1047.875-116.37647.75-116.25127889.6931538.5931132.378107.384520010401
    spyglass_peak_ID1047.875-116.25147.75-116.12627853.4971618.7971217.462149.52520010401
    pond_peak_ID1047.875-116.12647.75-116.00127778.8821894.6821169.427254.624520010401
    taylor_peak_ID1047.875-116.00147.75-115.87627797.7981889.5981238.922208.013520010401
    bloom_peak_MT1047.875-115.87647.75-115.75127708.321814.021307.016201.269520010401
    larchwood_MT3047.875-115.75147.75-115.62627711.1981895.1981101.246276.671519990406
    trout_creek_MT1047.875-115.62647.75-115.50127711.6841826.784919.797216.833520031001
    seven_point_mountain_MT3047.875-115.50147.75-115.37627709.2442053.2441269.143327.158520020801
    vermilion_peak_MT3047.875-115.37647.75-115.25127952.2682212.2681608.814223.39520020801
    fishtrap_lake_MT3047.875-115.25147.75-115.126271057.242194.241473.546230.165219990406
    richards_peak_MT3047.875-115.12647.75-115.00127899.2131762.2131228.301192.398119990406
    cook_mountain_MT3047.875-115.00147.75-114.87627897.252049.251433.5287.51520020801
    bumblebee_peak_ID1047.75-116.37647.625-116.25127675.8911504.4911028.704166.284520010401
    steamboat_creek_ID1047.75-116.25147.625-116.12627671.0891612.2891015.288192.947520010401
    grizzly_mountain_ID1047.75-116.12647.625-116.00127687.9841819.3841088.678230.877520010401
    prichard_ID1047.75-116.00147.625-115.87627717.1441469.544972.543134.568520010401
    murray_ID1047.75-115.87647.625-115.75127820.7121922.4121334.242210.818520010401
    black_peak_MT1047.75-115.75147.625-115.62627871.8441993.5441441.749226.852520020801
    helwick_peak_MT3047.75-115.62647.625-115.50127742.2091895.2091197.031248.046520020801
    belknap_MT3047.75-115.50147.625-115.37627706.1552039.155920.009227.962219990406
    mount_headley_MT3047.75-115.37647.625-115.25127789.3092262.3091605.036327.999520020801
    priscilla_peak_MT3047.75-115.25147.625-115.12627758.2282163.2281498.218280.339219990406
    calico_creek_MT3047.75-115.12647.625-115.00127808.1871959.1871214.052223.953119990406
    loneman_creek_MT3047.75-115.00147.625-114.87627949.1891947.1891273.107228.723219990406
    cataldo_ID1047.625-116.37647.5-116.25127649.6281298.128845.565137.451520010401
    kellogg_west_ID1047.625-116.25147.5-116.12627659.1321746.332939.68235.282520010401
    kellogg_east_ID1047.625-116.12647.5-116.00127697.9241718.0241079.027215.56520010401
    osburn_ID1047.625-116.00147.5-115.87627739.6681616.9681096.068176.621520010401
    burke_ID1047.625-115.87647.5-115.75127821.3152078.8151437.189261.75520010401
    thompson_pass_MT1047.625-115.75147.5-115.626271016.7692064.3691574.054228.307520020801
    driveway_peak_MT3047.625-115.62647.5-115.50127868.2071955.2071306.043225.478219990406
    table_top_mountain_MT3047.625-115.50147.5-115.37627711.1731751.1731143.911218.029520020801
    thompson_falls_MT3047.625-115.37647.5-115.25127711.1621784.1621051.328263.711520020801
    eddy_mountain_MT3047.625-115.25147.5-115.12627726.1852190.1851324.616385.304520020801
    big_hole_peak_MT3047.625-115.12647.5-115.00127734.1772123.1771306.727367.129520020801
    weeksville_MT3047.625-115.00147.5-114.87627731.1751571.1751083.257186.49219990406
    twin_crags_ID1047.5-116.37647.375-116.25127739.4911955.6911288.376255.99520010401
    masonia_ID1047.5-116.25147.375-116.12627711.6791921.0791244.15221.924520010401
    polaris_peak_ID1047.5-116.12647.375-116.00127799.0841884.9841364.824205.231520010401
    wallace_ID1047.5-116.00147.375-115.87627775.4681929.2681269.396223.897520010401
    mullan_ID1047.5-115.87647.375-115.75127885.0972081.3971396.876240.952520010401
    lookout_pass_MT1047.5-115.75147.375-115.626271021.6531970.9531503.876193.862520020801
    saltese_MT1047.5-115.62647.375-115.501271017.1241929.2241447.838198.504520020801
    haugan_MT3047.5-115.50147.375-115.37627939.1991895.1991345.704233.175520020801
    de_borgia_north_MT3047.5-115.37647.375-115.25127927.2141867.2141413.403236.235520020801
    penrose_peak_MT3047.5-115.25147.375-115.12627978.2182241.2181489.663251.096519990406
    sunset_peak_MT3047.5-115.12647.375-115.00127793.1882017.1881392.129248.096520020801
    plains_MT3047.5-115.00147.375-114.87627740.1421782.1421031.058267.974520020801
  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:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate:-116.25638328
    East_Bounding_Coordinate:-114.99039001
    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)
  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)