Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Charts
    From: Gary LaPook
    Date: 2009 Jan 19, 18:37 -0800

    Frank, thanks for the link to the charts. I was just looking at:
    which is the old 752 chart for Chicago. I noticed when I used this
    chart when I lived in Chicago that the street grid does not run true
    north. If you go to this link and follow the 87� 39' longitude line
    you will see that the north-south streets in Chicago run about 359�
    true. I know  the city was surveyed with the township-range grid but I
    thought that this would cause the Chicago grid to run true north. I
    noticed that when driving north that at several main streets ( I think
    39th was one of them) and spaced eight miles apart you make a slight
    jog to the west and then continue north on the same street. I bellieve
    that this is a result to the township-range survey method. But I still
    don't understand why the streets are not true north and I am sure that
    the surveyors wouldn't have made such a large error.
    Do you have an explanation?
    On Jan 19, 2:43�pm,  wrote:
    > Yes. The Office of Coast Survey has compiled a wonderful collection of old 
    charts. Here's the search 
    > Enter "Long Island" under keywords, set the state to "New York", click 
    "Submit", and you will get a list of some 82 charts (in no particular order). 
    It's a lot of fun.
    > -FER
    Navigation List archive: www.fer3.com/arc
    To post, email NavList@fer3.com
    To unsubscribe, email NavList-unsubscribe@fer3.com

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site