Ranked summit in Utah missed on LoJ

Discuss anything pertaining to mountains of the U.S.

Ranked summit in Utah missed on LoJ

Postby Scott Patterson » Sun Feb 19, 2023 7:00 pm

There is a Utah summit missed on LoJ due to a contour error on the contour map.

Coordinates:

37.41811,-110.16284

The map is wrong, the creek/creek-bed actually cuts through the rock wall where the red line is marked (approximate). The big bed around hasn't been the creekbed for probably thousands of years and is an interesting abandoned meander.

Image

Here is a photograph from yesterday of where the creek cuts through the wall:

Image

Interpolated rise should actually be 320', though this should be verified by LiDAR.

The saddle should actually be in the old creek bed somewhere to the west or northwest of the summit.
Scott Patterson
 
Posts: 143
Joined: Wed Aug 02, 2006 2:58 pm

Re: Ranked summit in Utah missed on LoJ

Postby Scott Patterson » Sun Feb 19, 2023 7:09 pm

It's interesting to look at Google Earth and see what's going on.

Image

Zoom in where you can see the creek slicing through the rock wall:

Image
Scott Patterson
 
Posts: 143
Joined: Wed Aug 02, 2006 2:58 pm

Re: Ranked summit in Utah missed on LoJ

Postby bdloftin » Wed Feb 22, 2023 11:21 am

That's a cool find! Were you just exploring in the area and found the rock gap? Is the summit easily reachable?
bdloftin
 
Posts: 9
Joined: Wed Jan 24, 2018 12:21 pm

Re: Ranked summit in Utah missed on LoJ

Postby Scott Patterson » Wed Feb 22, 2023 9:26 pm

bdloftin wrote:That's a cool find! Were you just exploring in the area and found the rock gap


It's a well known place known as The Narrows, but I didn't notice the 7.5 minute map was wrong until we were there last weekend and that the summit should be ranked. The map is also wrong at the next bend up canyon too as the actual creek bed is where the trail is shown, but that summit isn't ranked.

Is the summit easily reachable?


The peak is definitely technical.
Scott Patterson
 
Posts: 143
Joined: Wed Aug 02, 2006 2:58 pm

Re: Ranked summit in Utah missed on LoJ

Postby JoeGrim » Thu Feb 23, 2023 11:10 am

Very cool! It would be fun to explore around and see if there could be a possible non-technical route up through a series of ledges, just in case. Makes me want to visit SE Utah this spring! ;-)
User avatar
JoeGrim
 
Posts: 214
Joined: Wed Feb 28, 2007 12:02 pm
Location: Loveland, CO

Re: Ranked summit in Utah missed on LoJ

Postby Scott Patterson » Thu Feb 23, 2023 11:37 am

JoeGrim wrote:Very cool! It would be fun to explore around and see if there could be a possible non-technical route up through a series of ledges, just in case.


The summit rock would still be technical for sure, but it would be neat to find a way up there.
Scott Patterson
 
Posts: 143
Joined: Wed Aug 02, 2006 2:58 pm

Re: Ranked summit in Utah missed on LoJ

Postby JoeGrim » Thu Feb 23, 2023 12:17 pm

Yeah, I see those summit rocks casting shadows, indicating they're likely tens of feet tall.
User avatar
JoeGrim
 
Posts: 214
Joined: Wed Feb 28, 2007 12:02 pm
Location: Loveland, CO

Re: Ranked summit in Utah missed on LoJ

Postby John Kirk » Mon Mar 11, 2024 11:50 am

LiDAR for this came out late last week. While it's true that the saddle is not to its east, the saddle is even higher than the map indicates regardless of location at 4,807'. So at 216 prom it's pretty far from being ranked. Checked the neighboring summit to the east, also misses with only 169' prom.

Summit is 5,023', a 20ft pillar on the flat-ish top here: https://listsofjohn.com/mapf?lat=37.41798&lon=-110.16260&z=19&t=s&d=y
Saddle is 4,807' here: https://listsofjohn.com/mapf?lat=37.41965&lon=-110.16267&z=19&t=s&d=y

Where the water actually flows through is 4,747'.
User avatar
John Kirk
LoJ Architect
 
Posts: 1605
Joined: Sun Jan 02, 2005 1:04 am
Location: Lakewood, CO

Re: Ranked summit in Utah missed on LoJ

Postby Scott Patterson » Tue Mar 12, 2024 9:59 pm

Dang, thanks for checking. The contours are really confusing in that area.
Scott Patterson
 
Posts: 143
Joined: Wed Aug 02, 2006 2:58 pm


Return to US Mountains

Who is online

Users browsing this forum: No registered users and 4 guests