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Showing posts from July, 2020

Where It's At: Walking the perimeter of this city = Walking from Philadelphia to Denver

If you were to walk the perimeter of this U.S. city's city limits, you would cover 1,562 miles (2,513 km), which is roughly the same distance as walking from Philadelphia to Denver.*

Here's what that distance looks like:

Philadelphia to Denver

And the answer is:

Houston city limits

Well, of course, Houston.  Isn't everything big in Texas?  The city covers an area of 672 square miles (1,739 sq km), and all those little (big) tendrils shown by the dark blue lines above make its perimeter add up to this whopping 1,562 miles!  Want to zoom in and see the details?  Explore the city limits of Houston here.

So, Houston takes the prize for the longest perimeter of any city in the United States.  If you're curious, #2 is Buckeye, AZ at 646 miles (1,039 km), and #3 is Charleston, SC at 619 miles (997 km).

Bonus trivia:  If Houston has the longest perimeter, does it also have the largest area?  

No.   That distinction goes to Jacksonville, FL at 875 square miles (2,265 sq km).  (If you include boroughs in this calculation, the winner is Sitka, AK at 2,870 sq mi of land area (7,433 sq km))


Want to explore your city?  Check out the What City Am I In? tool on this website.

* this is the "as the crow flies" distance from Philadelphia to Denver.  If you were to actually walk from Philadelphia towards Denver along legal routes, according to Google Maps, you'd make it to about the eastern border of Colorado.




  

NEW: Share your map with one click

Now available on most map tools on randymajors.com, use the "Share Map..." button to create a shareable link that remembers all of the following:
  • which map tool you are using (e.g. City Limits on Google Maps, Elevation on Google Maps)
  • what point you had clicked on the map (or had searched for using the "Search places" box above the map)
  • how far zoomed in or out you want the map to display
  • optionally, a title for your map
Here's an example, sharing a map from the City Limits on Google Maps tool, centered on Ocala, Florida:

Share Map button on City Limits on Google Maps tool


In this example, I have added a map title where it says "title=" at the end of the text box.  This produces the following link (click to see the finished result):


Or, to make it more pretty, you can title the link and embed the link address, like this (again, click to see the finished result):


And here's another example, showing an elevation contours map centered on the Gangtey Monestery in Bhutan:

Share Map button on Elevation on Google Maps tool


Links for this map:





To use the Share Map button:
  1. open the map tool of your choice in the randymajors.com Map Tools menu in the upper left
  2. center the map where you want it either by clicking the map or using the "Search places" box above the map
  3. zoom in or out on the map using the + and - buttons on the map
  4. click the "Share Map..." button on the left side of the map
  5. right-click the link that appears and click "Copy Link Address" (or, if you want to add a custom title, edit the map title after "title=" in the textbox that appears and then copy the text in the textbox)
  6. paste the link whereever you want to share it (e.g. another website, an email, a blog post, a forum, facebook, twitter etc)

Power tip:  To share maps containing more than just a point, check out the map tools in the Custom Map Tools menu in the upper left corner of the website.  For example, create custom delivery area maps using the Custom Areas using ZIP Codes tool


Hope you find this new functionality useful!

Happy map sharing!



Where It's At: Drop nearly 15,000 feet in just over 85 miles in the Contiguous U.S.

Where It's At is an occasional feature that uses maps to show interesting stuff about our world.  At least interesting to map geeks like me :)

For this inaugural post:  Where can you can drop nearly 15,000 feet of elevation in just over 85 miles in the contiguous United States?

A clue:  these two points also happen to be the highest elevation point and the lowest elevation point in the contiguous U.S.


Mt Whitney to Badwater Basin elevation profile map

And here's the elevation profile along that line:

Mt Whitney to Badwater Basin elevation profile

Note that it's not a nice easy descent along that path, as there are mountain ranges in between.  In fact, let's go the other direction:  if you wanted to (theoretically) walk along that 85 mile path from Badwater Basin to the top of Mt. Whitney, your elevation gain would be about 35,600 feet (that's about 23% higher than Mt. Everest's 29,029 foot elevation!)

Has anybody ever done this?


How-to:  The above maps and facts were created using the Elevation on Google Maps tool, which has worldwide coverage.  On that tool, you can draw an elevation profile by clicking the "Elevation Profile..." button on the left side of the map (double-click to finish drawing your path).  

Power tip:  To export the elevation data from the profile, first expand the chart into its own tab by using the button in the upper right of the chart, then click the "Download CSV" button.  I opened the .csv file into Excel to calculate the elevation gain, which is the sum of elevation increases along your path (elevation gain exclude segments of elevation declines).


 

AD-FREE FULLSCREEN Map and Search Tools Now Available Using Any Major Credit or Debit Card

Now you can get access to ad-free fullscreen map and search tools by making a small monthly contribution using any major credit or debit card.  A PayPal account is no longer required (but you may optionally use one if you wish).

Once you click the "Contribute" button, as shown below, you'll be taken to a page hosted on PayPal to process the transaction:  


On that page, you can either login and pay via PayPal or you can click the "Pay with Debit or Credit Card", shown here: 




I hope this is a useful option for the many people who have asked me about this.

Happy mapping and searching!