Lyons
589 routes and 127 boulder problems at 17 crags. "Lyons" is the catalogue's own grouping — a town, a canyon or a corridor, whichever climbers actually say.
Which way a wall faces is known for 8 of these 17; the rest say nothing rather than guess. Sun and shade by season ranks the ones we know.
At a glance
- Crags sit between 5,609 and 9,644 ft (elevation known for 17 of 17).
- Rock, where known (6 of 17 crags): granite (4), gneiss, schist & quartzite (1), sandstone (1).
- Mapped geology under these crags (17 of 17 read off the geologic map): till of pinedale age (8), dakota group (2), silver plume quartz monzonite (2) and 5 more units.
- The USGS has mapped this ground since 1902; each crag page shows its oldest sheet.
- No crag here is within 1.5 km of an RTD stop. Mapped toilets within 2 km of 10.
- Sun and shade:
St. Vrain Canyons
- South Fork of St. Vrain Canyon453 routes and 25 boulder problems · granite (Silver Plume Granite) · 5,905 ft
- North Fork of the St. Vrain River82 routes and 47 boulder problems · faces SW · granite (Silver Plume Granite) · 6,020 ft
- Middle Fork of St. Vrain Canyon47 routes · faces W · granite (Silver Plume Granite) · 8,503 ft
Lion's Den, The
Camp Dick
- Warm-up Area5 boulder problems · faces S · unconsolidated (Till of Pinedale age) · 8,796 ft
- Bolt Boulder3 boulder problems · unconsolidated (Till of Pinedale age) · 8,652 ft
- Fingerbanger Boulder3 boulder problems · unconsolidated (Till of Pinedale age) · 8,866 ft
- Omniglobe Boulder3 boulder problems · faces S · unconsolidated (Till of Pinedale age) · 9,479 ft
- The Marty Boulder3 boulder problems · unconsolidated (Till of Pinedale age) · 8,652 ft
- Alpenglow Boulder2 boulder problems · unconsolidated (Till of Pinedale age) · 9,604 ft
- Grape Van Boulder2 boulder problems · unconsolidated (Till of Pinedale age) · 9,271 ft
- Pyramid Boulder2 boulder problems · unconsolidated (Till of Pinedale age) · 8,872 ft
- Fork Boulder1 boulder problem · faces S · Biotite schist · 9,644 ft
Rabbit Mountain
Heil Valley Ranch
Steamboat Mountain
Every crag here comes from the open catalogue or a cited guidebook; see Sources & licences. Counts are the current build's.