The Mara Triangle & Esoit Oloololo (Siria) Escarpment
Unlike the rest of the park, which is under the control of the Narok County Council, the northwest sector of the reserve is managed by the nonprofit Mara Conservancy. The only way to reach this part of the park is from either the Oloololo gate or via the New Mara Bridge. Consequently, this area is less visited than elsewhere, despite having high concentrations of wildlife.
The Oloololo Escarpment, which forms the northwest boundary of the park, was once wooded, but fire and elephant damage mean that it's now mostly grasslands. Rock hyraxes and klipspringers can be readily seen here.