The loch is an important wildlife habitat, and a population of cormorants often bask on the rocks jutting out of the water.

Loch Broom feeds the River Cuileig, which is joined by the Allt Breabaig stream that rises in Sgùrr Breac to the south.

The two rivers join close to Cuileig Power Station, 4+3⁄4 miles (7.5 kilometres) southeast of Loch Broom, passing Lael Forest before joining the loch as a fast flowing river with a strong current.

Beinn nam Ban – at 1,900 ft (580 m), also a Marilyn – is located at the base of the peninsula, overlooks Dundonnell to the southwest and Loch Broom to the west and south.

Lying southwest of Dundonnell, overlooking Little Loch Broom, and Gruinard Bay and Gruinard Island, to the northwest, lies the majestic ridge of An Teallach (meaning "The Anvil" or "The Forge" in Scottish Gaelic), with 10 mountains over 3,000 ft (914.4 m).