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Details for Benchmark: DC1770

N 32° 43.470 W 117° 08.821 (NAD 83)

Altitude: 0

Coordinates may not be exact. Altitude is UNKNOWN and location is ADJUSTED. (more info)

In SAN DIEGO county, CA View Original Datasheet
Marker Type:
setting not listed - see description

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found where described

photoHospital stack

Spotted this striking stack from Balboa Park.

photoThe Navy Hospital stack

Saw the NAVHOSP stack today --

the virtual cache is the benchmark too!

N 32° 43.568 W 117° 08.783

US Navy Hospital stack appears to be in good condition.

Navy Hospital smokestack (San Diego, CA)

Found with CarlottaP

Oaknest and I spotted the stack while geocaching.

photoUSN Hospital Stack

Still there.

Found while spending the day in Balboa Park.

Another tower seen in San Diego

Found while geocaching.

Another find while heading to the zoo..

We found this benchmark while at Balboa Park for a Flash Mob Event.
mmcgr & Minnie

photoMinnie, GPS, & Balboa Naval Hospital Stack Benchma

I saw this one tonight whilst leaving the zoo, it's in good condition!


Still there. It doesn't seem to move much.

photoBM DC1770

gone by here many times
but this time wit appointment for ultra sound
i entered coordinates in waypoint; but it pointed
to building 26. mayb on other side of building but it was raining
so i returned to base of stack coordinates there is
N 32* 43.566' W 117* 08.799' Elev 192ft

photoN 32* 43.566' W 117* 08.799' Elev 192ft

(T: 0955) Was at the naval hospital this morning and noted this BM.

photoDC1770 in San Diego, Ca

This is my third logged benchmark, and walk by here everyday! There is a new tower right next to the old one, and although you can walk up and tough them, they both are easily seen from Balboa Park, the first Naval Hospital, or the really neat, free military museum nearby!

N 32° 43.567 W 117° 08.781

Found as described.

I added a nearer coordinate than that provided by NGS to help with azimuths.
Have a good one!

[This entry was edited by Sweatsock on Saturday, April 05, 2008 at 6:41:50 PM.]

photoDC1770, Balboa Park, San Diego, CA
photoDC1770 C, Balboa Park, San Diego, CA

Found when I was at my Dad's work for the day. He works at this very hospital, NMCSD.

Easily spotted from Park Bl

Located 0900.
Spend a day at the Zoo with some friends and introduced them not only to geocaching, but also benchmark hunting. No descriptive text for this benchmark. Unable to ascertain era of construction for landmark.

We're uploading a photo of the only thing in the area that fits the description. We couldn't get too close as it's in a restricted area. The GPS was pointing in another direction but this was the only stack around.


Found this one easily while in the company of The Greasy Diner. The stack is now somewhat different than the original description due to construction modifications. Thanks, Fort Rectus

It's still there! Although it's been updated recently, it's still standing there as is has for many years.

Documented History (by the NGS)

01/01/1933 by CGS (FIRST OBSERVED)
01/01/1934 by CGS (GOOD)
01/01/1961 by CGS (SEE DESCRIPTION)
01/01/1977 by NGS (GOOD)

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in June 1996. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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