THE ORRTANNA LAND BRIEF
Land in the
Triassic Lowlands setting.
Orrtanna CDP has 0.2 square miles of land in Adams County. Its Census reference point is in Triassic Lowlands, within Northern Piedmont.
Rounded low hills, open valleys and irregular plains form a transition between Appalachian highlands and the coastal plain. The underlying geology mixes metamorphic, igneous and sedimentary rocks.
Regional context: Northern Piedmont ↗ · Classification at the Census reference point
Orrtanna and Adams County
Orrtanna is associated with Adams County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Orrtanna by land and water
The Census records <0.01 square miles of water within Orrtanna, or 1% of its total area. It is 0.4 percentage points higher than the 0.6% recorded for Adams County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Orrtanna CDP has 1.6% of the land area of nearby Highland township (12.1 square miles). These areas describe boundaries, not comparable property prices.

