The settlement of Hygiene and the surrounding agricultural plains of Boulder County are defined by a complex network of irrigation infrastructure and rural heritage. An intricate system of water management features, including the Oligarchy Ditch, Mill Ditch, and Saint Vrain Supply Canal, supports the local landscape between Lyons and the western edge of Longmont. This 2016 survey documents the enduring presence of historic sites like the Ryssby Church Cem and the twin Hygiene North Cem and Hygiene South Cem, which provide essential touchstones for genealogical research in the area.
142 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1902 · Boulder
USGS Topo · 1:62,500
1904 · Niwot
USGS Topo · 1:62,500
1904 · Boulder
USGS Topo · 1:62,500
1905 · Mount Olympus
USGS Topo · 1:62,500
1906 · Loveland
USGS Topo · 1:62,500
1907 · Mount Olympus
USGS Topo · 1:62,500
1908 · Loveland
USGS Topo · 1:62,500
1950 · Hygiene
USGS Topo · 1:24,000
1950 · Erie
USGS Topo · 1:24,000
1950 · Niwot
USGS Topo · 1:24,000