All Locations > Idaho > S Idaho > City of Rocks > Bath Rock > Bath Rock - West

Minimum Impact

Name: Minimum Impact
Rating: 2.4

5.11b YDS 6c French 23 Ewbanks VIII- UIAA 23 ZA E3 5c British

Routes in Bath Rock - West

L › R R › L A › Z

	Bath Rock Girdle Traverse 5.12 7b+ 27 VIII+ 26 E6 6b
	Coffee and Cornflakes S 5.10a 6a 18 VI+ 18 E1 5a
	Colossus S 5.10c 6b 20 VII 20 E2 5b
	Donini's Crack T 5.10c 6b 20 VII 20 E2 5b
	Gemini S 5.12a 7a+ 25 VIII+ 25 E5 6a
	Loch Ness Monster S 5.11 6c+ 23 VIII- 23 E4 5c
	Minimum Impact S 5.11b 6c 23 VIII- 23 E3 5c
	Private Idaho T 5.9 5c 17 VI 17 HVS 5a
	Rollercoaster S,TR 5.8 5b 16 VI- 15 HVS 4c
	Tarantula S 5.11c/d 7a 24 VIII 25 E4 6a PG13
	Whip, The S 5.12d 7c 28 IX 28 E6 6b
	Wild Country T 5.11c 6c+ 24 VIII- 24 E4 6a R
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Type:	Sport, 70 ft (21 m)
GPS:	42.07578, -113.7227
FA:	Hong ‘88 / Lee ‘25
Page Views:	221 total · 19/month
Shared By:	Cody Lee on Jul 29, 2025
Admins:	GRK, Mike Engle, Eric Bluemn Page Updates (admin only)

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Explore this route in 3D

Use onX Backcountry to explore the terrain in 3D, view recent satellite imagery, and more. Now available in onX Backcountry Mobile apps! For more information see this post.

Access Issue: (1) Weather Wall, Yellow Wall, & all the crags north of Twin Sisters are CLOSED. (2) There are no longer trash cans in the park. (3) Highlining ban in place for CIRO and CRSP Details

(1) The area, crags, and routes just north of the Twin Sisters are on private land and the landowner posted no trespassing notices at the gated road/trail to the area. Any access of these areas and routes is trespassing. The area was closed by the landowner due to trespassing, illegal camping, fires & trash, and disregard of owner's privacy.
Please be respectful of the land owner's wishes and do not climb or hike here. This includes White Lightning, Skinner Roof, Weather Wall, Yellow Wall, Larry's Annihilation, Needle Rock, Mississippi Fred's, and Secret Tom's.
(2) In 2024 CIRO implemented a no trash cans anywhere policy. Be prepared to take your trash home with you. facebook.com/CityOfRocksNPS… and nps.gov/ciro/planyourvisit/…
(3) HIGHLINING IS PROHIBITED
Highlining at City of Rocks National Reserve and Castle Rocks State Park is prohibited as of August 28, 2019.

Here are Google Drive links to the closure and the updated Code of Regulations for CIRO. drive.google.com/open?id=1y… and drive.google.com/open?id=1Y…

Description

After criticism of his bolted routes in the city, Rex Hong made a statement with a ground up onsight FA of Maximum Impact. Essentially a solo - he reportedly spent a very long time looking for gear placements (nonexistent) and even climbed in and out the crux several times before committing and taking it to the top.

Almost 40 years later, the sport routes put up by the jackson hole crew remain some of the city’s most popular, but this route was largely ignored. When contacted about applying for a permit to add bolts & and anchor, Rex begrudgingly gave his permission.

“Maximum Impact. Ahhh impetuous youth. Can’t wait til they’re good enough to do it. … I do think it would be a cool route to add to the rollercoaster wall, but most we bolt everything? If it were to happen, the one thing I would hope to happen, change the name to Minimum Impact”

Location

Shares the start (and optional first bolt) of coffee and cornflakes on the far right side of rollercoaster wall. For full value, finish directly on the bolt line up top rather than skirting out right.