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remnant high
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Figure 2: Stages in the development of shallow piercement salt dome; initial stage at left
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remnant high

geology
Also known as: turtleback high
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Figure 2: Stages in the development of shallow piercement salt dome; initial stage at left
Figure 2: Stages in the development of shallow piercement salt dome; initial stage at left

A remnant high, also known as a monadnock, is an isolated hill of bedrock that stands conspicuously above the surrounding landscape. These features are erosional remnants, meaning they are left behind because their rock composition is more resistant to erosion than the surrounding material. Monadnocks are typically found in humid, temperate regions and are often composed of quartzite or less jointed volcanic rocks. They get their name from Mount Monadnock in New Hampshire. Other examples include Stone Mountain in Georgia. Merriam-Webster defines an erosion remnant as a landscape feature standing above the general level to which erosion has reduced its surroundings. Residual landforms are similar, being the remains of an ancient landscape that escaped burial or destruction.123

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4 Britannica Sources
  1. monadnock
  2. rock - Types of remanent magnetization
  3. residual landform
  4. erosion remnant

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