Study estimates overland routes using post office data, suggesting historical location insights.
We may reasonably suspect that many post offices established prior to 1870 were situated near overland routes. We may model these overland routes as 1-manifolds embedded in 2-space. Such objects are referred to as filaments, and a natural question is how we might estimate them given data such as our post office data.
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Abel et al. (2026) studied this question.
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