Backcountry campsite 3L1 (Lower Cache Creek) in the Lamar River area accommodates up to 12 people and allows llamas only for stock use, with 8 stock animals permitted.

The site is typically accessible from mid- to late May and requires advance reservation or walk-in permit; contact the Central Backcountry Office at (307) 344-2160 for current trail and water crossing conditions in this remote area.