Initial Point of the Gila and Salt River Base Line and Meridian - Avondale, AZ
N 33° 22.630 W 112° 18.366
12S E 378507 N 3693862
Quick Description: Benchmark for the Initial Point of Arizona
Location: Arizona, United States
Date Posted: 2/1/2009 1:41:41 PM
Waymark Code: WM5Q37
Views: 51
Long Description:
Located at the top of Monument Hill, this benchmark is the point of reference that most of Arizona was surveyed from. From this point, east and west is the Gila and Salt River Baseline; and north and south is the Gila and Salt River Meridian. This is the baseline and principal meridian for the state. The monument is located on Phoenix International Raceway property. It can be accessed with only with permission by PIR, but can also be visited during race events when hill seating is available. A plaque identifies this as part of the National Register of Historic Places (listing #02001137). The benchmark is labled T1N R1W R1E T1S 2006, and is set in concrete with colored tile showing the baseline and meridian.
Street address:
South Avondale Boulevard
Avondale, AZ USA
85323
County / Borough / Parish: Maricopa
Year listed: 2002
Historic (Areas of) Significance: Point of reference for land survey of Arizona
Periods of significance: 1850 - 1874
Historic function: Survey marker
Current function: Hill seating for race events
Privately owned?: yes
Season start / Season finish: From: 8/11/2013 To: 8/11/2013
Hours of operation: From: 12:00 AM To: 12:00 AM
Primary Web Site: [Web Link]
Secondary Website 1: [Web Link]
Secondary Website 2: [Web Link]
National Historic Landmark Link: Not listed
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Visit Instructions:
Please give the date and brief account of your visit. Include any additional observations or information that you may have, particularly about the current condition of the site. Additional photos are highly encouraged, but not mandatory.
