# Underground Lake #141/144 — Skyridge

## Summary

Underground Lake is a Stadium that let Fossil decks rebuild straight from the discard pile, a niche engine for Omanyte and Kabuto players rather than a staple of its format. Skyridge was the last gasp of the original era, so its Uncommons draw quiet completist interest more than headline chasing. The modelled guide sits at $11, up 1% over 30 days on 5 copies traded, with 576 days of inventory on the board; PSA does not split this card’s population by finish, so no gem rate can be read for it, with original packs long past any pull-rate math.

## Identity

| Field | Value |
| --- | --- |
| Set | Skyridge |
| Number | 141/144 |
| Rarity | Uncommon |
| Era | WOTC |
| Illustrator | Midori Harada |
| Release date | 2003-05-12 |
| Image | Unavailable |

## Card details

| Field | Value |
| --- | --- |
| Card type | TRAINER |
| Subtype | Stadium |
| Legal | Standard no · Expanded no |
| Finishes | Normal, Reverse Holo |
| Languages | EN |

## Current stats

- Headline price: **$10.96** (ITEM_MEDIAN; modelled guide price) — as of 2026-11-07
- Headline basis: MODELLED_GUIDE — The venue’s published daily market guide, which the venue itself declares MODELLED. Nothing is confirmed to have traded at it, no copy is listed at it, and it is not our estimate — it is theirs.
- 24h change: n/a · 7d change: n/a — as of 2026-11-07
- Floor delivered ask: $10.51 — as of 2026-11-07T23:47:55.260Z
- Quant score: 27/100, regime ILLIQUID_UNKNOWN — as of 2026-11-07T23:47:55.260Z — 4 of 11 inputs · 38% weight · -31% confidence

## Provenance

- Catalog — observed 2003-05-12T00:00:00Z, confidence 98%
- Live ask — observed 2026-11-07T11:03:52.637Z, confidence 90%
- Open auction — observed 2026-09-16T00:05:26.120Z, confidence 90%
- Guide price (modelled) — observed 2026-11-07T00:00:00.000Z, confidence 90%
- Price statistic — observed 2026-11-05T05:46:59.780Z, confidence 90%
- Confirmed sale — observed 2026-10-27T00:01:41.920Z, confidence 85%
- Inventory count — observed 2026-11-05T05:46:59.779Z, confidence 70%
- Population census — observed 2026-09-12T17:54:52.722Z, confidence 60%

## Links

- [View on Cardboard Alpha](https://cardboardalpha.com/pokemon/skyridge/underground-lake-141)
- [JSON snapshot](https://cardboardalpha.com/api/terminal/raw~tcgdex%3Aecard3-141%3AEN%3ANORMAL~NM)