Boulder County - March 1, 1912
|Established: October 2, 1879
July 15, 1916
Altona, a rural
post office, was located some nine miles north of Boulder on the
road to Lyons at the mouth of Left Hand Canyon. The area served
as a staging point of miners heading west to the gold fields at
Ward and beyond.
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2006 - Colorado Postal History Society - All rights reserved.