Geology
Doña Ana County, NM
Approximate location — plotted from published sources, not a site visit, and not a guarantee of access.
Prominent isolated volcanic/andesite peak (“A Mountain”) on the east edge of Las Cruces with public BLM trail network, summit cross, and city-to-desert views across the Mesilla Valley and Organ Mountains. Short, popular geology-and-vista hike distinct from Organ Mountains developed sites (Dripping Springs, Aguirre Spring, Soledad).
| Region | Doña Ana County, NM |
|---|---|
| Coordinates (approx.) | 32.2926, -106.6978 |
| County | Doña Ana |
| Manager | BLM Las Cruces District / public trail network (local “A Mountain” / Tortugas) |
| Feature class | Summit (volcanic peak) |
| Elevation | ~4,900+ ft summit zone |
| Also known as | A Mountain; Tortugas Mountain |
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Plan ahead. Leave no trace. Verify current access before traveling.