# Bottle & Dump Digging

**URL:** https://weekendtreasurehunter.discourse.group/c/bottle-dump-digging/12.md

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## [About the Bottle & Dump Digging category](https://weekendtreasurehunter.discourse.group/t/about-the-bottle-dump-digging-category/15)

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**Author:** [@Seeadler](https://weekendtreasurehunter.discourse.group/u/Seeadler)\
**Replies:** 0\
**Last updated:** [September 20, 2026, 6:29pm UTC](https://weekendtreasurehunter.discourse.group/t/about-the-bottle-dump-digging-category/15 "2026-09-20T18:29:10Z")

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Bottle dating, dump research, and cleaning.

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## [Best cleaning method for bottles that doesn't damage them?](https://weekendtreasurehunter.discourse.group/t/best-cleaning-method-for-bottles-that-doesnt-damage-them/42)

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**Author:** [@Seeadler](https://weekendtreasurehunter.discourse.group/u/Seeadler)\
**Replies:** 0\
**Last updated:** [September 20, 2026, 6:55pm UTC](https://weekendtreasurehunter.discourse.group/t/best-cleaning-method-for-bottles-that-doesnt-damage-them/42 "2026-09-20T18:55:21Z")

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Curious what people use here — tumbling, hand cleaning, soaking — and what’s worked without risking damage to older or more fragile glass.

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## [How do you find old dump sites to research/dig?](https://weekendtreasurehunter.discourse.group/t/how-do-you-find-old-dump-sites-to-research-dig/41)

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**Author:** [@Seeadler](https://weekendtreasurehunter.discourse.group/u/Seeadler)\
**Replies:** 0\
**Last updated:** [September 20, 2026, 6:54pm UTC](https://weekendtreasurehunter.discourse.group/t/how-do-you-find-old-dump-sites-to-research-dig/41 "2026-09-20T18:54:51Z")

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Old plat maps, talking to longtime landowners, aerial imagery showing depressions — what’s actually led you to productive sites?

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## [How do you date an old bottle without a maker's mark?](https://weekendtreasurehunter.discourse.group/t/how-do-you-date-an-old-bottle-without-a-makers-mark/40)

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**Author:** [@Seeadler](https://weekendtreasurehunter.discourse.group/u/Seeadler)\
**Replies:** 0\
**Last updated:** [September 20, 2026, 6:54pm UTC](https://weekendtreasurehunter.discourse.group/t/how-do-you-date-an-old-bottle-without-a-makers-mark/40 "2026-09-20T18:54:27Z")

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Seam lines, base characteristics, glass color — what features do you check first when there’s no obvious manufacturer stamp?