Showing posts with label Yosemite National Park. Show all posts
Showing posts with label Yosemite National Park. Show all posts

8/03/2019

Hike in Yosemiete NP !



August 3, 2019

Hiking in Yosemite NP

I went hiking twice within 2 weeks to Yosemite National Park this summer.

Due to a lot of snowing last winter, there was still a lot of snow on the trail.
It was much more than June in 2016!

Mt. Dana

From summit of Mt. Dana

It was my second time to hike to Mt. Dana.
Since I woke up late, when I arrived at the trail head it was a little before 11am.
The parking lot near Tioga Pass entrance was full.  However I got a parking spot with a little waiting.
It is probably better going there early to ensure to get a parking spot!

There were two sections where the trail was covered by snow about 300 feet.
Some people detour to avoid snow, however, I thought it might be much easy to hike straight.
I hike on the snow with an ice axe.

It have not had hiking for a while.  I was really exhausted.  The round trip was about more than 4 hours!

Gaylor Lake

Gaylor Lake

The second hike was today!
Since my family went there with me, I picked much easier one.
The trail head is also the same as Mt. Dana, but this one heads to north instead of south for Mt. Dana!

It was just 2 hours hiking from the parking lot.  It is much easier than Mt. Dana.  Just relax and enjoy very nice view around the lake!

Snow on a trail toward Mt. Dana was melted a lot.  There was still some snow, but it was getting much smaller than 2 weeks ago!





3/01/2019

Half Dome Preseason Lottery 2019 is delayed (Yosemite NP)

Half Dome (Yosemite National Park / California USA)

Preseason Lottery for Half Dome is delayed according to the web site of Yosemite National Park this year.  It is usually starting on March 1 every year.  The date to open has not been determined yet.

To hike to the top of Half Dome a permit required.  To get the permit, there are two different way to get it.  One is going through preseason lottery and the other is daily lotteries.  Since daily lottery allocation is limited, it is probably a good idea to get it through preseason lottery.

It is better to pay more attention for announcement on the web site to find out the new schedule.



8/03/2016

Annual Pass in National Park

Mt. Dana / Yosemite



   Some people might be aware that I was originally from Japan.   I have been living in the United States for almost twenty years.
   One of interesting thing I found in this country is an annual pass.   It is very popular in many places, including theme parks, museums, zoos and etc.   I saw a similar concept in Japan, but the difference between the once time and the annual in Japan is much larger than here in the United States.  Since the price difference is big, I have never bought annual pass in Japan.  However, I started buying annual passes right after I moved in.
   Typically, an annual pass price is probably a several times higher than one time, it is sometimes only a few times expensive.  Recently, I bought an annual pass for National Parks, which is US $80.   If just single visit to Yosemite National Park is US $30 per a car.  So if people plan to visit National parks three times, then annual pass is lower cost.  In our family case, we definitely visit more than three times and we always buy an annual pass.   A similar things I had done when our kids were little, I bought an annual path for a zoo.  In many cases, I think annual pass would be a reasonable price in most of places, especially people live in the local area of the facility for the pass.   But now, I think the one time ticket is probably too expensive.  That’s is why people tend to buy the annual pass here.   The service provider might want people to come multiple times.  Therefore, they set the price like that.  At least people, who buy an annual pass, may visit the place at least a few times during the period. 
   In Japan, they assume people might not come multiple times, therefore, they try to get more people with one time ticket.  If I think about like this, a lot of facts can be explained.   As an example, museum in Japan, they usually has the same display for a long time except some special event.   But many museums here are doing change their display so often.   It is good for repeaters to see something different every time.  On the other hand, people might not come back if the display is almost the same as the last visit.   So the strategy to get people is different!
Anyway, I think the annual pass system for the national park here is very good.  There are many national park around San Francisco Bay area and I believe the fee is considered as a donation which is tax deductible.     I am not sure if it is still true or not, but previously, there is some discount for camping fee in a National park.  Then if it is one time, people tend to stay longer in a park, to try seeing as much as they can.   However, if people have annual pass, then once they finish their purpose for a visit, such as a short hiking, then they can leave and try to plan the next trip.  Typically, National Park here is huge, and it will take some time to look around a park.  This is also good to focus a partial area in a visit.
   Yosemite National Park is one of very famous National Parks in the United States, it is always crowded in summer time.    It is probably hard to visit multiple places in a day.  It is also hard to get a place people can stay overnight in the park or near the park.  People who come from outside of California, they might not have much choice.  However, we live in around 3 hours driving range.  Therefore, it is easy to make a day trip for one particular area.  I believe the one time entrance is valid for seven days.  Therefore, unless people continuously stay in / near the park, people require to pay another fee in the next weekend.  I guess it might be a bit expensive just pay $30 for a weekend.   It is much better to have an annual pass, don’t you think?
   My previous pass was expired in June this year and I bought a new pass in the July fourth weekend.  Since then, I visited Lassen Volcanic National Park and Yosemite National Park twice.   If I buy one time tickets, it will be $20 for Lassen and $60 for Yosemite twice, total $80 which is the same as the annual pass.  The other benefit is if people have an annual pass, sometimes they offer a faster line or bypass the entrance station if the line getting into the park is long.   The last weekend, they did at an entrance of Tioga Pass in Yosemite.  People who does not have the pass needs to wait in a line.
   It is nice to consider an annual pass for a national park in the United States!

7/22/2016

Mt. Dana hiking ~ Data analysis



Mono Lake from Mt. Dana
   Although I did not wear heart rate monitor during the hiking, I tried to look into the tracking data in detail.
   Based on the comparison I did for the three hiking data, I concluded there might not have clear impact of the elevation.  Let’s see how the detail data tells.

 Average moving speed every 50m elevation change

 Average slope every 50m elevation change

   I normalized the data by using averaging value with a section of 50m elevation change.  I did not see any clear speed drop during the hiking.  The slope number is a ratio for the distance and the elevation difference which indicates the amount of steepness.  A positive number shows ascending and a negative number shows descending.
   Here is the notes, in the middle of the ascending, there is a bit flat portion (plateau), and therefore the moving speed is increasing.  After the section the moving pace is slowing down due to the steep slope.   The last section of ascending is getting steeper.  However, there might be some error data because the slope profile is not really symmetric.   But there is relatively steeper section near the summit on the ascending and descending and it is enough to say the section near the summit is steeper.  The speed drop near the summit was due to a short rest when I took some video and photos on the summit.  I did not exclude the resting time on the summit.
I did not have the heart rate data for this hiking, but from the moving speed data with slope data, I do not see a clear speed drop in this hiking.   I also see slowing down in steep sections on descending as well.  Since I could not walk faster on the steep sections.

 Average moving speed every minutes
   This is different way to normalize the tracking data.  This one is calculated average moving speed every minutes (or 60 seconds).  It is very clear for the resting at the summit.

   I did not really tell this is because of acclimation with Mt. Whitney hiking or not.   As I mentioned in the comparison article, this ascending is a similar as ascending from Trail Camp to Trail Crest on Mt. Whitney Trail.    However, duration above 3,500m elevation is only one hour on ascending which is much shorter than the section on the Mt. Whitney Trail.   Also, the two hiking are two weeks apart.   Based on this, it might be hard to believe the acclimation was still valid.  Therefore, I guessed that I was not really acclimated.  But I do not have clear data and probably need to collect more data to prove it.


Mt. Whitney Hiking Guide “Hiking the highest mountain in California”
·         Go to Amazon.com
(Or you may go to your local Amazon site and search “ASIN: B01IFSFBV6”)


7/20/2016

Hiking this summer ~ mountains around 10,000 ~ 14,000 feet elevation




Lassen Peak & Lake Helen


   This summer I went hiking to Mt. Whitney (14,505 feet / 4,421m), Lassen Peak (10,457 feet / 3,187m) and Mt. Dina (13,061 feet / 3,981m).  Unfortunately, I did not wear the heart rate monitor when I hiked to Mt. Dana.  Therefore I did not really detail comparison.  But based on the elevation gain, distance and duration, I compared the three cases.
   For fair comparison, I use a data between Trail Camp and Trail Crest.  Since this section is a similar elevation as Mt. Dana.


Elevation Gain
(Vertical speed)
Distance
(Speed)
Ratio
(Elevation/Distance)
Duration
(H:MM)
Elevation
Mt. Whitney
6,100 feet
1,900m
11 miles
17.5km


14,505 feet
4,421m
(Trail Camp to Trail Crest)

1,700 feet
518m
(4.8m/min)
2.2 miles
3.5km
(32m/min)
0.15
(8.5 degrees)
1:49

13,700 feet
4,176m
Lassen Peak
2,000 feet
609m
(6.8m/min)
2.5 miles
4.0km
(45m/min)
0.15
(8.8 degrees)
1:29

10,457 feet
3,187m
Mt. Dana
3,108 feet
947m
(6.4m/min)
2.9 miles
4.7km
(32m/min)
0.20
(11.6 degrees)

2:28

13,061 feet
3,981m

   They are different elevation, Trail Crest on Mt. Whitney Trail is the highest, Mt. Dana is the second and Lassen Peak is the last.  The average slop for Mt. Whitney (Trail Crest) and Lassen Peak is a similar and Mt. Dana is the steepest.  All cases has a similar weight on the backpack for a day trip.  Obviously, data for Lassen Peak is the fastest.  I did not really see much impact for the altitude.
   Mt. Whitney (Trail Crest) and Mt. Dana is a similar elevation, although Trail Crest is a bit higher than Mt. Dana.  Overall speed is almost the same.  But Mt. Dana is steeper, if we look at the vertical speed, the vertical speed for Mt. Dana is much faster than the vertical speed for Mt. Whitney (Trail Crest).  This indicates, the steepness is the reason the walking pace is slower.   Since the vertical speed for Mt. Dana is close to the vertical speed for Lassen Peak, I think there might not be much impact for the altitude in Mt. Dana case.   It could be possible I was acclimated after Mt. Whitney Hiking.   However, it was 2 weeks after Mt. Whitney hiking and I only stay there for 2 days.  It might be hard to believe I did.   So my opinion, since Mt. Dana hiking is short and I was able to push myself and I could make faster pace without much problems.  Although I did not have heart rate monitor, I believe I managed my heart rate / walking pace very well except really last portion of the summit.  I did not feel any obvious symptom of high altitude sickness when I hiked to Mt. Dana.
   It might be hard to tell if hiking to Mt. Dana helps the acclimation to the altitude or not just from this data.   For this conclusion, I need to collect more data to see if there is any data point to indicate the acclimation.

Mt. Whitney Hiking Guide “Hiking the highest mountain in California”
·         Go to Amazon.com
(Or you may go to your local Amazon site and search “ASIN: B01IFSFBV6”)