While this pool is often labeled as developed, its really only talking about the surrounding stone structure. Because Hart Mountain is a high desert area, temperatures and weather can sometimes be extreme. Located to the east of the Warner Valley and directly south of Hart Mountain National Antelope Refuge, the High Lakes plateau is dotted with intermittent lakes and playas. Winds increasing (light winds from the WNW on Fri afternoon, fresh winds from the SW by Sun night). The pools gravel and bedrock bottom provide the base for spring water to bubble up from at a temperature up to 104F. Email Becca Frager, our Complex Visitor Services Manager, to learn more: rebecca_frager@fws.gov. Spring is the most