National Trails Chisholm and Western National Historic Trail Feasibility Study Routes

National Park Service Open Data2025-08-04 更新10

Viewsheds from Key Observation Points for Lewis and Clark National Historic Trail (LECL)

Visibility viewsheds incorporate influences of distance from observer, object size and limits of human visual acuity to define the degree of visibility as a...

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Old Spanish National Historic Trail Feasibility Study Line

地理空间数据

历史步道规划

This is a vector line ESRI Shapefile showing the approximate designated route of the Old Spanish National Historic Trail.

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NTIR Chisholm and Western NHT Feasibility Study Routes

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NTIR Chisholm and Western NHT Feasibility Study Routes

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