Next in line ... Mystery Cache

Continue the series below to its 34^th number.  Determine the digital root (sum the digits and re-sum until you get a single digit) of the 31^st, 17^th, 19^th, 23^rd, 30^th, 14^th, 34^th and 33^rd numbers of the series.   These are, in that order, the last four digits of the N and W coordinates of the cache.

1, 2, 3, 2, 5, 6, 4, 8, 9, 7, 11, 12,

A GeoChecker is provided to save you from a possible goose chase.

Be careful parking near the cache, especially in winter. Best to wait until well after a snowstorm until the plows have had a chance to thoroughly clear the streets.