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Interstate Highway Bounded Regions of the USA

Showing Bob Mattson's first ascent dates for climbed peaks (1 out of 85, or 1.18%)

RankPeakSection Elev-M StateRange (Level 4) Prom-M AscentsAscent Date
1.Mount WashingtonI-81, I-95, I-90, Canada1917New HampshireWhite Mountains187441311984-06-11
2.Mount San AntonioI-5, I-15, I-10, I-403068CaliforniaTransverse Ranges18973159 
3.Mount WhitneyI-5, I-15, I-40, I-804419CaliforniaSequoia Sierra Nevada30722658 
4.Mount RainierI-5, I-15, I-84, I-904392WashingtonSouth Washington Cascades40372057 
5.San Jacinto PeakI-15, I-25, Mexico, I-103304CaliforniaPeninsular Southern California Ranges25361854 
6.Mount ElbertI-15, I-25, I-40, I-704399ColoradoSawatch Range27651422 
7.Clingmans DomeI-75, I-77, I-85, I-402025North Carolina/TennesseeGreat Smoky Mountains13731357 
8.Mount Mitchell(I-75), I-77, I-40, I-812037North CarolinaCentral Blue Ridge Ranges18561325 
9.Mount BakerI-5, I-15, I-90, Canada3286WashingtonNorth Cascades26861312 
10.San Gorgonio MountainI-15, I-25, I-10, I-403505CaliforniaTransverse Ranges25281307 
11.Mount ShastaI-5, I-15, I-80, I-844317CaliforniaCalifornia Cascades29751130 
12.Slide MountainI-81, I-95, I-80, I-901274New YorkCatskill Mountains10001039 
13.Cadillac MountainI-95, Atlantic, I-90, Canada466MaineNew England Upland466814 
14.Spruce KnobI-77, I-81, I-64, I-701482West VirginiaAllegheny Mountains848801 
15.Black Elk PeakI-25, I-29, I-80, I-902204South DakotaBlack Hills887783 
16.Longs PeakI-15, I-25, I-70, I-804345ColoradoFront Range896703 
17.Cheaha MountainI-65, I-75, I-85, I-20733AlabamaSouthern Appalachian Ridges440682 
18.Campbell HillI-75, I-77, I-70, I-80472OhioLower Peninsula-Heartland195672 
19.Hoosier HillI-65, I-75, I-70, I-80383IndianaLower Peninsula-Heartland91636 
20.Mount PinosPacific, I-5, I-10, I-802692CaliforniaTransverse Ranges1463613 
20.Magazine MountainI-35, I-55, I-20, I-40839ArkansasOuachita Mountains650613 
22.Santiago PeakI-5, I-15, I-101733CaliforniaPeninsular Southern California Ranges1337509 
23.Eagle MountainI-29, I-35, I-94, Canada701MinnesotaSuperior Upland403439 
24.Mount ArvonI-35, I-55, I-94, Canada603MichiganSuperior Upland289414 
25.Great Blue HillI-95, Atlantic, I-80, I-90195MassachusettsNew England Upland147380 
26.Mount ConstitutionPacific, I-5, I-90, Canada734WashingtonInside Passage Islands734377 
27.Mount OlympusPacific, I-5, I-86, I-902429WashingtonOlympic Mountains2389368 
28.HawksbillI-81, I-95, I-64 , I-701234VirginiaNorthern Blue Ridge655345 
29.Sandia CrestI-25, I-35, I-40, I-703255New MexicoSoutheast New Mexico Ranges1249314 
30.Mount EddyPacific, I-5, I-80, I-842751CaliforniaKlamath Mountains1556275 
31.Gannett PeakI-15, I-25, I-80, I-904207WyomingWind River Range2157270 
32.Apple Orchard MountainI-77/81, I-95, I-40, I-641288VirginiaNorthern Blue Ridge861157 
33.Thurston PeakI-15, (I-25), I-80, I-84 2958UtahWasatch Range820144 
34.Sierra Blanca PeakI-25, I-35, I-10/20, I-403649New MexicoSoutheast New Mexico Ranges1686118 
35.Blue MoundsI-35, I-55, I-80, I-90524WisconsinUpper Mississippi Area285105 
36.Blue KnobI-77, I-81, I-70, I-80951PennsylvaniaAllegheny Mountains23882 
37.Crazy PeakI-15, I-29, I-90/94, Canada3417MontanaCentral Montana Ranges174079 
38.Sugarloaf MountainI-75, I-95, Atlantic, I-1094FloridaSoutheast Coast7578 
39.The PinnacleI-75, I-77, I-20, I-85515North CarolinaPiedmont22973 
40.Bald KnobI-77, I-81, (I-40), I-641329VirginiaCentral Appalachian Ridges62269 
41.Baldy Peak(I-25), I-35, Mexico, I-102554TexasTrans-Pecos Texas Ranges119456 
42.Lapham Hill(I-35), (I-55), I-90, I-94376WisconsinUpper Mississippi Area8949 
43.Balsam Beartown MountainI-75, I-77, I-81, I-641436VirginiaSouthern Appalachian Ridges64946 
43.Cuyahoga County High Point(I-75), I-77, I-80, I-90390OhioLower Peninsula-Heartland946 
43.Williams HillI-55, I-65, I-40, I-64324IllinoisLower Peninsula-Heartland19046 
46.Cross MountainI-65, I-75, I-40, I-641077TennesseeCumberland Mountains63845 
47.Weld County High PointI-25, I-29, I-70, I-801945ColoradoCentral Great Plains2444 
47.San Pedro HillPacific, I-5, I-10445CaliforniaTransverse Ranges41444 
49.Dowdell KnobI-65, I-75, I-10, I-85425GeorgiaPiedmont15141 
50.Briar HillI-55, I-75, I-94, Canada520MichiganLower Peninsula-Heartland31732 
50.Youngs MountainI-77,I-85,I-40332North CarolinaPiedmont9432 
52.Oak HillI-65, I-75, Gulf, I-10101FloridaSoutheast Coast5828 
53.Weed Patch Hill(I-55), I-65, I-64, I-70322IndianaLower Peninsula-Heartland7927 
54.Warren Peaks(I-25), I-29, I-90, I-942027WyomingBlack Hills54925 
54.Hinch MountainI-65, I-75, I-20, I-40929TennesseeCumberland Plateau48425 
56.Butler County High PointI-35, I-44, I-70512KansasCentral Great Plains7320 
57.Buffalo LookoutI-35, I-55, I-40, I-44781ArkansasOzark Plateau11017 
57.Cass County High PointI-29, I-35, (I-70), I-80445IowaUpper Mississippi Area1217 
59.North MountainI-77, I-81, I-80, I-90788PennsylvaniaAllegheny Plateau42216 
59.Hillsdale County High Point(I-65), I-75, I-90, I-94390MichiganLower Peninsula-Heartland11016 
61.High Rock MountainI-77, I-95, I-20, I-85362North CarolinaPiedmont15215 
62.Flanigan HillI-55, I-65, I-20, I-40354TennesseeCumberland Plateau6114 
63.Ellis County High PointI-35 W, I-55, I-10, I-20274TexasSouthern Great Plains7713 
64.Sampson County High PointI-95, Atlantic, I-4070North CarolinaPiedmont312 
65.Pimple HillI-81, I-95, I-70, I-80674PennsylvaniaAllegheny Plateau11311 
66.Punished Womans MoundI-29, I-35, I-90, I-94634South DakotaNorthern US Great Plains499 
67.Hendricks County High PointI-55, I-65, I-70, I-80314IndianaLower Peninsula-Heartland308 
68.Webb County High PointI-35, I-55, Mexico, I-10287TexasSouthern Great Plains1086 
69.Monroe County North High PointI-35, (I-55), I-90, I-94439WisconsinUpper Mississippi Area855 
69.Sand MountainI-75, I-77, I-64, I-70433KentuckyCumberland Plateau1205 
69.Jeptha Knob BenchmarkI-65, I-75, I-64, I-70362KentuckyCumberland Plateau1215 
72.Junction 660I-65, (I-75), I-80, I-90201IndianaLower Peninsula-Heartland63 
73.Davis Benchmark(I-25), I-35, I-10, I-201273TexasTrans-Pecos Texas Ranges112 
73.Sewel Fire TowerI-75, I-94, Canada458MichiganLower Peninsula-Heartland772 
73.Lake View HillI-75, I-81, I-90, I-94390PennsylvaniaAllegheny Plateau62 
73.Shades MountainI-55, I-65, I-10, I-20335AlabamaCumberland Plateau852 
73.Schilling School HillI-55, I-65, I-80, I-90244IllinoisLower Peninsula-Heartland322 
73.Junction 420I-95, I-70, I-80128MarylandNorthern Blue Ridge122 
73.Benchmark 363I-95, I-64, I-70111MarylandNorthern Blue Ridge12 
73.Interstate HillI-55, I-65, I-1049AlabamaSoutheast Coast02 
81.Okabena HillI-29, I-35, I-80, I-90527MinnesotaNorthern US Great Plains211 
81.Barr BenchmarkI-35, I-55, I-70, I-80358IowaUpper Mississippi Area01 
81.Chaparral HillI-75, I-95, I-10, I-20328GeorgiaPiedmont411 
81.Myrtle Hill SlopeI-85, I-95, I-40, I-64238North CarolinaPiedmont01 
81.Radford HillI-95, I-40, I-64 75North CarolinaPiedmont 1 

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

Multiple Ascents Grid: Click for a grid showing all of Bob Mattson's ascents of peaks on this list (including up to 10 rounds of repeats).

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

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