_dta:
  1.  places1990 set up by Jean Roth , jroth@nber.org , 30 Mar 2016
  2.  Source Page: http://www.census.gov/geo/maps-data/data/gazetteer1990.html
  3.  Source File URL: http://www2.census.gov/geo/docs/maps-data/data/gazetteer/places.zip
  4.  Source File: places.txt
  5.  There is a duplicate record in the source data.
  6.  The "Seven Springs borough" record is kept because that is the name of place 4269336 in the 2000 SF1 file.
  7.  fipsst fipsplace placefips placename stabbr totpop housunits landarea latitude longitude
  8.  42 4269336 69336 Seven Springs borough PA 22 564 2986 40.025095 -79.29153
  9.  42 4269336 69336 Three Springs borough PA 422 194 2616 40.195174 -77.98392
 10.  by Jean Roth , jroth@nber.org , 30 Mar 2016
 11.  Census Gazetteer Place file
 12.  Unique identifier is place
 13.  Distances between Place that are within 50000 miles

  obs:   565,797,582                          
 vars:             4                          30 Mar 2016 17:14
 size:34,513,652,502                          (_dta has notes)
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              storage   display    value
variable name   type    format     label      variable label
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place1          str7    %9s                   FIPS Place
mi_to_place     double  %10.0g                Distance between Places that are within 50000 miles
place2          str7    %9s                   FIPS Place
name            str39   %39s                  Place Name
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Sorted by: place1  mi_to_place  place2