Method: Clean | Average | Optimistic Winter Ascent Dates only (Help)Count a peak only once per dayShow List using U.S. Units (Feet)

Interstate Highway Bounded Regions of the USA - Multiple Ascents Grid

Showing all of Bob Mattson's ascent dates (max 10 rounds) (Overall: 1 out of 85, or 1.18%)

RankPeak Elev-M  Prom-M TotalRound 1
Round 2
Round 3
Round 4
1.Mount Whitney44193072     
2.Mount Elbert43992765     
3.Mount Rainier43924037     
4.Longs Peak4345896     
5.Mount Shasta43172975     
6.Gannett Peak42072157     
7.Sierra Blanca Peak36491686     
8.San Gorgonio Mountain35052528     
9.Crazy Peak34171740     
10.San Jacinto Peak33042536     
11.Mount Baker32862686     
12.Sandia Crest32551249     
13.Mount San Antonio30681897     
14.Thurston Peak2958820     
15.Mount Eddy27511556     
16.Mount Pinos26921463     
17.Baldy Peak25541194     
18.Mount Olympus24292389     
19.Black Elk Peak2204887     
20.Mount Mitchell20371856     
21.Warren Peaks2027549     
22.Clingmans Dome20251373     
23.Weld County High Point194524     
24.Mount Washington191718744 1984-06-11  1988-07-29  2010-05-30  2015-08-30 
25.Santiago Peak17331337     
26.Spruce Knob1482848     
27.Balsam Beartown Mountain1436649     
28.Bald Knob1329622     
29.Apple Orchard Mountain1288861     
30.Slide Mountain12741000     
31.Davis Benchmark127311     
33.Cross Mountain1077638     
34.Blue Knob951238     
35.Hinch Mountain929484     
36.Magazine Mountain839650     
37.North Mountain788422     
38.Buffalo Lookout781110     
39.Mount Constitution734734     
40.Cheaha Mountain733440     
41.Eagle Mountain701403     
42.Pimple Hill674113     
43.Punished Womans Mound63449     
44.Mount Arvon603289     
45.Okabena Hill52721     
46.Blue Mounds524285     
47.Briar Hill520317     
48.The Pinnacle515229     
49.Butler County High Point51273     
50.Campbell Hill472195     
51.Cadillac Mountain466466     
52.Sewel Fire Tower45877     
53.San Pedro Hill445414     
53.Cass County High Point44512     
55.Monroe County North High Point43985     
56.Sand Mountain433120     
57.Dowdell Knob425151     
58.Cuyahoga County High Point3909     
58.Hillsdale County High Point390110     
58.Lake View Hill3906     
61.Hoosier Hill38391     
62.Lapham Hill37689     
63.High Rock Mountain362152     
63.Jeptha Knob Benchmark362121     
65.Barr Benchmark3580     
66.Flanigan Hill35461     
67.Shades Mountain33585     
68.Youngs Mountain33294     
69.Chaparral Hill32841     
70.Williams Hill324190     
71.Weed Patch Hill32279     
72.Hendricks County High Point31430     
73.Webb County High Point287108     
74.Ellis County High Point27477     
75.Schilling School Hill24432     
76.Myrtle Hill Slope2380     
77.Junction 6602016     
78.Great Blue Hill195147     
79.Junction 42012812     
80.Benchmark 3631111     
81.Oak Hill10158     
82.Sugarloaf Mountain9475     
83.Radford Hill75      
84.Sampson County High Point703     
85.Interstate Hill490     

Main Peak List: Click here to see the standard peak listing, showning more informational columns and just the first ascent date.

Front Runners List: Click here to see list completion progress by climbers that log their climbs using

Compare Climbers: Click here to compare ascents of up to 5 climbers working on this list.

About the Multiple Ascent Grid:

  • This table grid shows all peaks on a given list, and all ascents done by Bob Mattson, up to 10 ascents per peak.
  • While many peakbaggers do not like to repeat ascents, some will try to do multiple "laps" or "rounds" of a favorite list, often one close to home.
  • The header for each ascent column shows, in parentheses, the total number of peaks climbed in each "round", and clicking the header link will sort your ascents for that round.
  • Due to space limitations, this listing has just the basic peak info, so up to ten date columns can be shown. Please use the main peak list (linked above) for more basic info and functionality.
  • Some climbers will log two ascents of the same peak on the same day--for example, when doing an out-and-back ridge run with other ascents sandwiched between two of the same peak. Some might not consider these to be two separate ascents for the purposes of doing multiple rounds. Clicking on the "Count a peak only once per day" link in the header will collapse multiple ascents of a peak on a single day into just one ascent for this grid list.

List Description

There are 22 interstate highways in the USA with a length of over 600 miles—in order, this is a list of the numbers of these routes:

5, 10, 15, 20, 25, 29, 35, 40, 44, 55, 64, 65, 70, 75, 77, 80, 81, 84, 85, 90, 94, 95

The longest is I-90 at 3020 miles, and the shortest is I-77 at 610 miles. This network of long highways divides the area of the 48 contiguous states into 85 chunks of land, and this list shows the highest peak for each of these sections.

Note that for the purposes of this analysis, interstate highways that approach coastal areas are assumed to continue to the ocean for the purposes of dividing the regions. Also note that some of these areas, particularly near Chicago and Los Angeles, can be very small.

This list includes many high, popular and well-known peaks, including 15 state high points and an additional 53 county high points. Most of the remaining 16 peaks are quite obscure. Overall, it’s an interesting grab-bag of objectives.


Thanks to Ron Tagliapietra, who created this list as a labor of love, and Andy Martin, who helped with the research.


Map Showing Location of Peaks

 = Peaks climbed by Bob Mattson   = Unclimbed peaks

Click on a peak to see its name and a clickable link.

(Map only shows peaks ranked by clean prominence)

Click Here for a Full Screen Map

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