Shared Solution

PID:	BBBG55
Designation:	40TH PARALLEL MONUMENT
Stamping:	TODD & WITHROW
Stability:	Monument will probably hold position well
Setting:	Large structures with deep foundations
Description:	Mark is located in a bench next to the 40th Parallel Monument commemorating the 1859 Baseline survey by Todd and Withrow, the result of a public/private partnership involving the PLSC, City of Boulder, County Surveyor, local survey companies and the Boulder Arts Commision. The monument is located on the south side of Baseline Rd. east of Broadway. Mark is a Witness Point to the Township line 1N/1S. Note:Mark is located in a wide rock bench close to a bus stop with considerable foot traffic.
Observed:	2009-01-28T19:00:00Z	more obs Original
Source:	OPUS - page5 1209.04

Close-up View

REF_FRAME: NAD_83(2011)

EPOCH: 2010.0000

SOURCE: NAVD88 (Computed using GEOID18)

UNITS: m

SET PROFILE

DETAILS

LAT:	40� 0' 0.32493"	� 0.004 m
LON:	-105� 15' 40.96360"	� 0.005 m
ELL HT:	1623.500	� 0.005 m
X:	-1288197.926	� 0.004 m
Y:	-4721360.196	� 0.005 m
Z:	4079036.817	� 0.005 m
ORTHO HT:	1639.267	� 0.050 m

	UTM 13	SPC 501(CO N)
NORTHING:	4427799.949m	378857.908m
EASTING:	477688.802m	934777.879m
CONVERGENCE:	-0.16801205�	0.15418116�
POINT SCALE:	0.99960613	0.99996636
COMBINED FACTOR:	0.99935160	0.99971174

	CONTRIBUTED BY
	kernstberger
	Flatirons Surveying

Horizon View

The numerical values for this position solution have satisfied the quality control criteria of the National Geodetic Survey. The contributor has verified that the information submitted is accurate and complete.