Hawthorn Block
Hawthorn Block in Colorado has 7 bouldering routes across 5 difficulty grades.
- 7 routes
- V1 – V2+
- Bouldering
Best time to visit Hawthorn Block
Best months: April–June and September–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
47° / 21°
6 wet
Feb
48° / 22°
7 wet
Mar
57° / 29°
8 wet
Apr
63° / 34°
10 wet
May
71° / 43°
12 wet
Jun
83° / 51°
10 wet
Jul
88° / 57°
11 wet
Aug
86° / 55°
10 wet
Sep
79° / 48°
8 wet
Oct
66° / 37°
7 wet
Nov
54° / 28°
6 wet
Dec
46° / 21°
6 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Boulder, CO, 3.4 mi away at 5,484 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Hawthorn Block is a climbing area on Boulder Memorial Hospital - Open Space, a city-managed parcel in Boulder, Colorado. It sits on city land, and the surrounding area is a mix of trails and other climbing spots, making it easy to pair with a walk or a longer outing. The most comfortable months for a visit are typically late spring and early fall. Typical averages from a nearby weather station in Boulder show May highs around 71°F and September highs around 79°F, with July peaking near 88°F. Several trails start close by. Goat Path Trail is about 0.1 mile away and Sanitas Valley Trail about 0.2 mile. Ridge Gap Wall and Mount Sanitas, both climbing areas, are within a mile.
Keep exploring — more climbs worth the drive
Photo: micahcraig, CC BY-SA 2.0 (via Flickr)Ridge Gap Wall
~1 min drive
Ridge Gap Wall is a bouldering crag in Colorado with 5 routes.
Photo: micahcraig, CC BY-SA 2.0 (via Flickr)Mount Sanitas
~1 min drive
Mount Sanitas in Colorado has 20 climbing routes across 12 difficulty grades.
Photo: micahcraig, CC BY-SA 2.0 (via Flickr)Lower Fin
~2 min drive
Lower Fin in Colorado has 5 bouldering routes across 3 difficulty grades.
Photo: micahcraig, CC BY-SA 2.0 (via Flickr)North Shelf Block
~2 min drive
North Shelf Block in Colorado has 10 bouldering routes across 5 grades.
Photo: Mihnea Stanciu, CC BY 2.0 (via Flickr)Second Buttress
~3 min drive
Second Buttress in Colorado has 7 climbing routes with mixed and trad styles.
Photo: Mihnea Stanciu, CC BY 2.0 (via Flickr)Third Buttress
~3 min drive
Third Buttress in Colorado has 12 climbing routes across 9 grades, offering mixed and traditional styles.
Photo: Akos Kokai, CC BY 2.0 (via Wikimedia Commons)Fourth Buttress
~3 min drive
Fourth Buttress in Colorado has 15 routes with mixed and trad climbing.
Photo: Mihnea Stanciu, CC BY 2.0 (via Flickr)Little Crag
~3 min drive
Little Crag in Colorado has 6 routes across 5 grades, offering mixed and sport climbing.
Red Rocks (Boulder)
~2 min drive
Red Rocks (Boulder) in Colorado has 13 climbing routes with 10 distinct difficulty grades.
The Dome
~3 min drive
28 mixed and trad routes in Colorado spanning 11 grades.
