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Jewel Cave Concrete paths - Public Domain image, National Parks Gallery

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Jewel Cave Concrete paths - Public Domain image, National Parks Gallery

description

Summary

Concrete had to be poured and smoothed by hand. Every piece of construction material had to be carried in through the portal tunnel, and then by hand through the tour route.

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jewel cave national monument

national parks gallery

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date_range

Date

2014

place

Location

43.73100, -103.83000

Google Map of 43.7309989929199, -103.830001831055

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Source

National Parks Gallery

link

Link

https://npgallery.nps.gov/

copyright

Copyright info

Public Domain Dedication

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jewel cave national monument

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