Difference between revisions of "2023-09-04 41 -88"

Latest revision as of 21:05, 24 May 2024

Location

In a field or golf course in North Aurora.

Participants

Plans

Going to walk there if I can.

Expedition

Today being a public holiday called Labor Day, I was fortunate enough to have the day off from work, and even more fortunate to find the hash point close to home. Close enough in fact that it appeared to be a great chance for my first Walk geohash achievement. So around 8am I packed Sylvie into my pocket, fired up Pokemon Go on my phone, and began the walk to the neighborhood adjacent to the field the point was in. On Google maps it appeared to be in a golf course, so I wasn't super hopeful of being able to get access.

However, as I turned down the road that led nearest to the point, I was greeted by numerous signs warning against trespassing and such. Apparently the road I was walking down was not a road at all, but in fact a long driveway to access the North Aurora water tower located here. Also visible was the "field" containing the geohash, which had a suspiciously warehouse shaped building being constructed in it. That didn't seem to bode well for reaching the point, but I remembered seeing another potential access road further away at the other end of the former golf course, so I headed over there.

Upon arriving at said road which led to a fully complete and occupied warehouse building, there was a yellow gate blocking the road and a sign saying "Emergency vehicles only". Past the yellow gate was another gate, and past that was yet another gate. Triple gated. As if one gate wasn't enough to make it clear no entry was allowed. Never before have I been on a geohashing expedition that was so thoroughly denied access as this.

Why you should not trust satellite imagery

Welcome to Tara's lesson in not trusting everything you see on the internet, particularly when it comes to satellite imagery. You may think, "This is a photo, that was taken of an actual location and has not been digitally manipulated in a malicious way." Well that doesn't mean it is accurate and it may still be very misleading! After my expedition I fired up Google Earth (because it has date controls for imagery) and took these screen shots of the imagery visible for the area of the hash point from this expedition:

Default image, from July 2022
Dated July 2023

The left image, which is what is displayed by Google products by default, is from July of 2022, over a year previous to today, and depicts what appears to be a golf course in the area. However, it does appear to be to different images blended together in the middle of the course, making it more difficult to tell what the terrain there really looks like. Only when viewing the most recent available images in Google Earth, which are from July 2023, do the current buildings appear. Fortunately, while I was misled by the inaccurate imagery it wasn't dangerous to me in any way. I could simply not access the area. But had this been in particularly difficult terrain it wouldn't be difficult for a geohasher to believe they could adventure into an area that looks safe from the default imagery only to find the actual conditions encountered to be anything but.

Lesson learned, don't trust satellite imagery! Do diligent research before adventuring out.

Photos

No access and visible construction site
Not just gated, triple gated! (3rd gate out of frame)

Achievements

Tarasaurus earned the No trespassing consolation prize

by almost reaching the (41, -88) geohash on 2023-09-04.

@@ Line 1: / Line 1: @@
 {{meetup graticule
-| lat={{#explode:{{SUBPAGENAME}}| |1}}
+| lat=41
-| lon={{#explode:{{SUBPAGENAME}}| |2}}
+| lon=-88
-| date={{#explode:{{SUBPAGENAME}}| |0}}
+| date=2023-09-04
 }}
 == Location ==
@@ Line 14: / Line 14: @@
 == Expedition ==
-Area was off limits and not accessible due to being an active construction site. More details later. - Tara
+Today being a public holiday called Labor Day, I was fortunate enough to have the day off from work, and even more fortunate to find the hash point close to home. Close enough in fact that it appeared to be a great chance for my first Walk geohash achievement. So around 8am I packed Sylvie into my pocket, fired up Pokemon Go on my phone, and began the walk to the neighborhood adjacent to the field the point was in. On Google maps it appeared to be in a golf course, so I wasn't super hopeful of being able to get access.
+However, as I turned down the road that led nearest to the point, I was greeted by numerous signs warning against trespassing and such. Apparently the road I was walking down was not a road at all, but in fact a long driveway to access the North Aurora water tower located here. Also visible was the "field" containing the geohash, which had a suspiciously warehouse shaped building being constructed in it. That didn't seem to bode well for reaching the point, but I remembered seeing another potential access road further away at the other end of the former golf course, so I headed over there.
+Upon arriving at said road which led to a fully complete and occupied warehouse building, there was a yellow gate blocking the road and a sign saying "Emergency vehicles only". Past the yellow gate was another gate, and past that was yet another gate. Triple gated. As if one gate wasn't enough to make it clear no entry was allowed. Never before have I been on a geohashing expedition that was so thoroughly denied access as this.
+===Why you should not trust satellite imagery===
+Welcome to Tara's lesson in not trusting everything you see on the internet, particularly when it comes to satellite imagery. You may think, "This is a photo, that was taken of an actual location and has not been digitally manipulated in a malicious way." Well that doesn't mean it is accurate and it may still be very misleading! After my expedition I fired up Google Earth (because it has date controls for imagery) and took these screen shots of the imagery visible for the area of the hash point from this expedition:
+<gallery widths=400px heights="250px" perrow=2>
+Image:2023-09-04 41 -88 map1.png|Default image, from July 2022
+Image:2023-09-04 41 -88 map2.png|Dated July 2023
+</gallery>
+The left image, which is what is displayed by Google products by default, is from July of 2022, over a year previous to today, and depicts what appears to be a golf course in the area. However, it does appear to be to different images blended together in the middle of the course, making it more difficult to tell what the terrain there really looks like. Only when viewing the most recent available images in Google Earth, which are from July 2023, do the current buildings appear. Fortunately, while I was misled by the inaccurate imagery it wasn't dangerous to me in any way. I could simply not access the area. But had this been in particularly difficult terrain it wouldn't be difficult for a geohasher to believe they could adventure into an area that looks safe from the default imagery only to find the actual conditions encountered to be anything but.
+Lesson learned, don't trust satellite imagery! Do diligent research before adventuring out.
 == Photos ==
-<!-- Insert pictures between the gallery tags using the following format:
-Image:2020-##-## ## ## Alpha.jpg | Witty Comment
--->
 <gallery perrow="5">
+Image:2023-09-04 41 -88 no1.jpg|No access and visible construction site
+Image:2023-09-04 41 -88 no2.jpg|Not just gated, triple gated! (3rd gate out of frame)
 </gallery>
 == Achievements ==
 {{#vardefine:ribbonwidth|100%}}
-<!-- Add any achievement ribbons you earned below, or remove this section -->
+{{No trespassing
-<!-- =============== USEFUL CATEGORIES FOLLOW ================
+    | latitude = 41
-Delete the next line ONLY if you have chosen the appropriate categories below. If you are unsure, don't worry. People will read your report and help you with the classification. -->
+    | longitude = -88
-[[Category:New report]]
+    | date = 2023-09-04
+    | name = Tarasaurus
-<!-- ==REQUEST FOR TWITTER BOT== Please leave either the New report or the Expedition planning category in as long as you work on it. This helps the twitter bot a lot with announcing the right outcome at the right moment. -->
+}}
-<!-- Potential categories. Please include all the ones appropriate to your expedition -->
-<!-- If this is a planning page:
-[[Category:Expedition planning]]
--->
-<!-- If all those plans are never acted upon, change [[Category:Expedition planning]] to [[Category:Not reached - Did not attempt]]. -->
-<!-- An actual expedition:
 [[Category:Expeditions]]
--- and one or more of --
 [[Category:Expeditions with photos]]
-[[Category:Expeditions with videos]]
-[[Category:Expedition without GPS]]
--->
-<!-- if you reached your coords:
-[[Category:Coordinates reached]]
---><!-- or if you failed :(
 [[Category:Coordinates not reached]]
--- and a reason --
-When there is a natural obstacle between you and the target:
-[[Category:Not reached - Mother Nature]]
-When there is a man-made obstacle between you and the target:
 [[Category:Not reached - No public access]]
+{{location|US|IL|KE}}
-When you failed get your GPS, car, bike or such to work:
-[[Category:Not reached - Technology]]
-When you went to an alternate location instead of the actual geohash:
-[[Category:Not reached - Attended alternate location]]
-(Don't forget to delete this final close comment marker) -->


Mon 4 Sep 2023 in 41,-88: 41.8013033, -88.3392146 geohashing.info google osm bing/os kml crox