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Thread: Obtaining on line various lists for peaks beyond New England 3,000 footers (Oncoman)

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    Senior Member Oncoman's Avatar
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    Obtaining on line various lists for peaks beyond New England 3,000 footers (Oncoman)

    Such lists can be obtained at http://lesiteayvon.com/listesoncoman.html

    Examples of available lists: NEng 2,000 footers; ME500 most prominent peaks; NH 1,850 footers

    Info is in French but self explanatory (e.g. élévation = elevation; culminance = prominence; fichiers = files)

    The files are grouped in 3 parts:
    1) Elevation lists by descending order of elevation
    2) Elevation lists by QUAD
    3) Prominence lists

    To access files one clicks on red titles (LIEN vers les fichiers)

    These lists are unique, going beyond NEng 3K's, NEng1000, NH 2K's and NH500

    Criteria for establishing Oncoman mountain lists

    1. Despite potential inaccuracies due to limited resolution, only the National Geographic (2002 edition) on line digital data using official USGS topographic maps (7,5 minute that is 1 :24,000 scale) were used, even if other sources quoted more accurate data; so as to ensure internal consistency between the various lists.

    2. Unless otherwise specifically stated on maps, values for elevations & key saddles are interpolated.

    3. All values are given in imperial units. If conversion from metric units is required, units are rounded to nearest unit (eg 2745.49' = 2745' ; 2745.50 = 2746').

    4. All peaks must have a minimal prominence of 200', interpolated if peak and/or saddle values are not officially stated on maps. However peaks with a prominence less than 300’ are clearly identified, thus making it easy to convert lists to minimal 300’ interpolated prominence ones.

    5. No minimal distance between peaks is required.

    6. If 2 peaks have the same elevation according to maps, as well as the same proximate parent and the same key saddle, they are nonetheless considered as 2 separate peaks provided that the col between them is 200’ or more interpolated. Otherwise such peaks are considered as a single peak, irrespective of the distance between them, but with multiple twin peaks; and these must all be climbed. This situation of twin peaks, or expressed differently, of a peak with multiple nearby equivalent contour lines is fairly frequent. However note that occasionally twin peaks can be more than 1 mile apart and may have distinct official names and be located in different QUADs or even different states or country. Also twin peaks may have slightly different elevations if one has an officially stated elevation value and the other(s) only interpolated values. Theoretically the higher one, be it the interpolated one or the one with an officially stated elevation value, should be considered as the true peak; but I chose to require that all such twin peaks be climbed.

    7. Mountain shoulders, also called false peaks, on state borders or country borders, are excluded.

    8. Disqualified peaks due to above criteria but on other official or unofficial lists must also be climbed, by respect to former peakbaggers. Note that peaks with less than 200’ of interpolated prominence, but whose prominence is 196’ or more, are also included in the excluded but to do list. Also peaks missing the elevation threshold of qualification for a given list by 4 feet or less are also included in the disqualified but to do list.

    9. Peaks that do not qualify due to officially stated insufficient values of elevation and/or col, are nonetheless included on the qualified or excluded lists if the values for their interpolated elevation and/or col shifts them over the threshold of qualification for those lists.


    Nomenclature for Oncoman lists

    Identification of list by state & elev. or prominence goal seeked (# pks on list + # disqualified pks)

    e.g. NH1850’ (536 + 47) ; NH100p (100)
    Last edited by Oncoman; 09-11-2019 at 07:56 AM.
    "Getting to the top is optional; getting back down is mandatory". Maxim of Ed Viesturs, the first American to have climbed all 14 of the world's 8,000 meter peaks.

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