USNM703bs, Old Word Ranch, Glass Mountains
Brewster County, Texas30.38889, −103.14167
Can I collect here?
ProSee who owns this land and whether it is claimedPro shows the owner, the claim on this spot and every claim within a mile.
Based on our latest records, with claims updated from the BLM on Oct 3, 2026. Land and claims can change quickly, so check before you go.
Minerals on record here
1 mineralRecorded here: fossil.
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The Market
Native American arrowhead$20cubedmoons3Browse the Market
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Native American arrowhead$20cubedmoons3Browse the MarketFound something here? List it for sale
About USNM703bs, Old Word Ranch, Glass Mountains
USNM703bs, Old Word Ranch, Glass Mountains is a fossil collection site in Brewster, Texas, cataloged in the Paleobiology Database. Fossils here come from the Cathedral Mountain Formation, dated to the Kungurian (283.3–274.4 million years ago). The depositional environment is recorded as reef, buildup or bioherm. Documented finds include Acosarina mesoplatys, Agelesia triagonalis, Anteridocus gongylus, Cancrinella, Cartorhium latum, Cenorhynchia parvula.
Geologic setting
- Formation
- Cathedral Mountain
- Geologic interval
- Kungurian
- Age
- 283.3–274.4 Ma
- Depositional environment
- reef, buildup or bioherm
- Recorded occurrences
- 50
Locality notes
0.17 miles S39W of Old Word Ranch house, Hess Canyon quadrangle.
Fossils found here
Acosarina mesoplatys
Rhynchonellata · Schizophoriidae
Agelesia triagonalis
Strophomenata · Aulostegidae
Anteridocus gongylus
Rhynchonellata · Pontisiidae
Cancrinella
Strophomenata · Linoproductidae
Cartorhium latum
Rhynchonellata · Trigonotretidae
Cenorhynchia parvula
Rhynchonellata · Wellerellidae
Choanodus irregularis
Strophomenata · Lyttoniidae
Chondronia bella
Rhynchonellata · Notothyrididae
Chonosteges multicostatus
Strophomenata · Aulostegidae
Composita imbricata
Rhynchonellata · Athyrididae
Composita
Rhynchonellata · Athyrididae
Compressoproductus curtus
Strophomenata · Monticuliferidae
Compressoproductus thomasi
Strophomenata · Monticuliferidae
Derbyia informis
Strophomenata · Derbyiidae
Derbyia laqueata
Strophomenata · Derbyiidae
Diplanus lamellatus
Strophomenata · Derbyiidae
Dyoros (Lissosia) vagabundus
Strophomenata · Rugosochonetidae
Echinauris irregularis
Strophomenata · Productellidae
Edriosteges multispinosus
Strophomenata · Aulostegidae
Enteletes plummeri
Rhynchonellata · Enteletidae
Eolyttonia circularis
Strophomenata · Lyttoniidae
Eolyttonia pocillata
Strophomenata · Lyttoniidae
Goniarina futilis
Strophomenata · Schuchertellidae
Hercosia uddeni
Strophomenata · Hercosiidae
Heterelasma gibbosum
Rhynchonellata · Cryptonellidae
Hustedia lusca
Rhynchonellata · Neoretziidae
Hustedia spicata
Rhynchonellata · Neoretziidae
Institella leonardensis
Strophomenata · Aulostegidae
Linoproductus delicatus
Strophomenata · Linoproductidae
Loxophragmus ellipticus
Strophomenata · Lyttoniidae
Meekella calathica
Strophomenata · Meekellidae
Metriolepis carotica
Rhynchonellata · Spiriferellinidae
Metriolepis larina
Rhynchonellata · Spiriferellinidae
Metriolepis tegulata
Rhynchonellata · Spiriferellinidae
Permophricodothyris bullata
Rhynchonellata · Elythidae
Neospirifer mansuetus
Rhynchonellata · Trigonotretidae
Peniculauris subcostata
Strophomenata · Productidae
Pontisia stehlii tumidosa
Rhynchonellata · Pontisiidae
Ptygmactrum angulatum
Rhynchonellata · Petasmatheridae
Rhamnaria tenuispinosa
Strophomenata · Aulostegidae
Rhipidomella hispidula
Rhynchonellata · Rhipidomellidae
Rhynchopora hebetata
Rhynchonellata · Rhynchoporidae
Stenoscisma aptatum
Rhynchonellata · Stenoscismatidae
Texarina wordensis
Rhynchonellata · Cryptonellidae
Thedusia bucrenata
Rhynchonellata · Neoretziidae
Xenosteges adherens
Strophomenata · Aulostegidae
Soleachiton yochelsoni
Polyplacophora · Acutichitonidae
Annuliconcha dentata
Bivalvia · Annuliconchidae
Showing 48 of 50 identified taxa.
Records and references
Data: Paleobiology Database collection 43516 (CC BY 4.0) — view the source record
Getting there
No directions yet.
How hard is it?
- Getting there
- – / 5
- Finding anything
- – / 5
- Votes
- 0
Trip reports
No trip reports yet.
Questions about USNM703bs, Old Word Ranch, Glass Mountains
Can you collect at USNM703bs, Old Word Ranch, Glass Mountains?
It depends on who owns the land and whether a mining claim covers it. BLM land usually allows hand collecting for personal use, national parks allow none, and private land needs the owner’s permission. Pro members see the owner and any claims at this spot.
What minerals are found at USNM703bs, Old Word Ranch, Glass Mountains?
Fossil.
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Source: Paleobiology Database.