TRAVEL BARGAINS: COPPER CANYON TREK OFFERED.

Byline: Daily News and Wire Services

Through August, you can spend four nights at the Sierra Lodge and three nights at Riverside Lodge in Mexico's remote Copper Canyon for $499 per person, double occupancy.

The famed canyon is actually five canyons, each larger and deeper than the Grand Canyon. Those in search of silver once inhabited the place and the Tarahumara Indians still live here. The trip includes all meals, guides and some vehicle excursions, as well as transfers from Chihuahua, Mexico, to Sierra Lodge. Information: [phone].

Llama trekking: If you're headed up to central California, you can spend a day in the company of llamas. Heritage Llama Treks of Placerville takes visitors - and llamas - along the historic Pony Express Trail in Eldorado National Forest on Saturday mornings. Llamas carry daypacks, drinks and lunch, leaving hikers unencumbered on the trail. Cost, including lunch, is $60 for adults and $30 for children under 17. Information: [phone].

Barbizon break: Through Sept. 1, the newly renovated Barbizon Hotel in New York City offers room rates beginning at $140 per night, single or double occupancy.

The hotel, which was once a women's residence hotel that housed such luminaries as Grace Kelly, Liza Minnelli and Candice Bergen, also offers, as part of its ``Summer Magic'' rates, free passes to the Solomon R. Guggenheim Museum. Information: [phone].

Saving pounds: Thistle Hotels, Britain's second-largest hotel company, is again offering its 1 pound equals $1 promotion at most of its properties. The deal offers Americans savings of up to $100 a night on rooms in England, Scotland, and Wales, with a two-night minimum stay. Information: [phone].

Freebies: If you're an Agatha Christie fan and are headed to England, you can follow four trails covering more than 40 locations tied to the famed mystery author. Just ask the British Tourist authority, for a free copy of the ``Agatha Christie Country'' leaflet spelling out the details, [phone].

The annual ``Travel Guide With Map of New York State'' has been improved with the addition of discounts to attractions and 20 percent discounts to hotels. For a free copy, write to the New York State Hospitality & Tourism Association, 11 N. Pearl St., 11th Floor, Albany, N.Y. 12207. Include a self-addressed, stamped business-size envelope.

For a free copy of ``Where to Stay in Oregon,'' an 88-page directory of more than 1,000 places to stay from deluxe hotels to campgrounds, call the Oregon Lodging Association, [phone].And Distinctive Inns of Colorado is offering a brochure detailing its 25 member properties located throughout the state. Call [phone].

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Photo: Mexico's remote Copper Canyon offers visitors grand vistas.