So I've been a reptile lover since I became a teen, and I've cared for my ball python. Additionally I've read up on tortoises, however this situation is a bit different. Long story short a lady in my community passed away and left behind her tortoise, being the reptile person I became the defacto next of kin to inherit her tortoise. She's a desert tortoise, or that's what they claim, but I need to do research to identify for certain.  They claim she was brumating when they gave her to me but she is very much awake. I did what research I could, and from what I've read its too cold for her to brumate in my yard, so she's in a kiddy pool makeshift enclosure for now. I've read a few sources on brumating, some have recommended not brumating a desert tortoise who is underweight or sick, and she seems a little underweight. Im planning to take her to the vet tomorrow, or as soon as I can. But I dont know what to do, I've never brumated a tortoise before, I'd like advice on if I should brumate or not, is thay even an option? I know certain species have to brumate and some dont have to brumate, I've researched but opinions seem mixed. Either way im keeping her as comfortable as possible while I figure out a better enclosure and such for her. She has a heat lamp and a heat pad, but i want to get more substrate for her so she can dig. I put her in a little tub for now as it seems it's where she's most comfortable. Also, I live in Nevada the lows get to around 40°F and the highs get to around 70°F currently 

Suddenly a tortoise parent during brumating season... help!