| back to
LISTS AND MAPS PAGE
| go to
Please send comments to webmaster.
This is one of eight lists that cover the known ultra-prominences for South America. This project represents original research into accurate elevations and prominence of the world's major summits, employing both new data sources and published topographic materials.
Compiled 2005 by Jonathan de Ferranti and Aaron Maizlish.
Petter Bjørstad and
collectively climbed six Ecuador ultras in December 2008. Their GPS-based comments are included.
Revised April 5, 2011
|5||HP Cordillera del Condor||Ecuador||2950||2011||939||03º17'42"S||078º19'30"W||SA066||9678||6598||
|9||Cerro Guagua Pichincha||Ecuador||4794||1652||3142||00º10'39"S||078º35'57"W||SA143||15728||5420|
Galapago Islands (2 Ultras)
||Volcan Wolf (HP Isla Isabela)
||Volcan Cerro Azul (Isla Isabela)
||Volcan La Cumbre (HP Isla Fernandina)
Elevations of summits and saddles were all checked on 1:50,000 Instituto Geografico Nacional topographic maps. There seems to be a systematic bias in the elevations on the printed maps when compared to SRTM data, and in many cases we have overridden these elevations. Saddle elevations concur strongly, and most of these elevations will be within or close to the contour interval on the topographic map.
H-B-W independently confirm this bias, e.g. Petter Bjørstad writes, "Note that we have adjusted all elevations that are reported in peak descriptions as well as in the Trip Report down by 10-15 meter relative to our GPS measurements. This should be taken into account by any party visiting and using their own GPS units."
A further suggested resource is John Biggar's climbing guide "The Andes" and website.
 Chimborazo: Elevation of 6267m is based on a 1993 GPS survey by Mike Jenkins. Frequently given elevations of 6310m and 6272m should be considered older and obsolete. The 6267m value is said to be the new "official" elevation. SRTM analysis concurs that the true elevation is close to 6270m. Ecuadorian topographic maps are silent on the subject. Chimborazo was once considered to be the highest mountain in the world.
H-B-W report an official "cover-up" by the Ecuador mapping agency of Chimborazo's summit elevation, with an "official lie" of 6,310 meters being maintained at the highest level. See the descriptions by Helman (section "Thursday, December 18"), Bjørstad (section "Day 11") and Woodall (section "Chimborazo summit elevation and Map datum").
 We regard Cerro Altar (#4) as higher than nearby Volcan Sangay (#10). Our estimates of their respective elevations are based on SRTM data. The topographic maps state that Volcan Sangay is higher, in which case their respective prominences would be approximately reversed.
 Highpoint of the range is estimated from SRTM. Ecuadorian topographic maps are not available for the region. The TPC charts give a high elevation of 2999m.
 Cotacachi: 1:50,000 map gives 4939m, Biggar gives 4944m. SRTM is compatible.
 Antisana: The topographic maps give an elevation of 5,758 meters. This is incompatible with the SRTM data. We have estimated an elevation of 5704m.
 Imbabura: H-B-W report a GPS-measured 4,632 meter summit elevation after subtraction of an observed 13 meter offset as determined by unit calibrations at nearby Laguna San Pablo. The resulting prominence is 4,632 m - 3,116 m = 1,516 meters.
[E1] Volcan La Cumbre, the highpoint of Isla Fernandina does not appear to be an ultra. Most internet sites repeat an elevation of 1463m. The Times Atlas gives a value of 1547m. We have elected to go with yet another published value of 1494m, which is the most consistent with our SRTM analysis.