Standley Chasm

verified ACA 1A Moderate flood risk Alice Springs, NT

A 50 m quartzite slot off Larapinta Drive that famously glows orange at midday. Non-technical walk on a small Aboriginal-owned reserve, operated as a paying day-trip site.

Indigenous name is Angkerle Atwatye. The site is freehold on Iwupataka Land Trust country, fee-gated and run as a tourism enterprise separate from the surrounding national park. Ropewiki classifies it as 1A I v1a1 I; it is the easiest entry in this region cluster.

Logistics

Manager	Iwupataka Land Trust (Aboriginal-owned), operated by Angkerle Atwatye Pty Ltd
Permit	Entry fee charged at the gate (privately operated on Aboriginal freehold land, distinct from Tjoritja / West MacDonnell NP). No canyoneering permit required because the route is a non-technical walk.
Distance	1.1 mi RT
Elevation	~165 ft loss to the slot floor
Time	30 to 45 min
Technical	Dry walk through a 50 m sandstone slot that narrows to about 3 m wide between near-vertical walls. The walls glow orange around midday when sun reaches the floor. No rappels, no swims; rough creek-bed walking on cobble.
Season	Year round. Best light is within an hour of midday; summer (Nov to Mar) is brutally hot in the slot.
Flood risk	Low to moderate. The catchment is small but storms can produce a brief surge; signage warns to leave the slot if rain threatens.
Vehicle access	Sealed road from Alice Springs (Larapinta Drive then Standley Chasm Road).
Crowd	Heavy in midday window. The site has a cafe and gallery and is on most Alice Springs tour itineraries.
Coordinates	-23.7214, 133.4698

Sources

ropewiki: https://ropewiki.com/Standley_Chasm